The enthalpy change of formation of water: -286 kJ mol-1 .The enthalpy of formation of calcium carbonate is -1073.6kJ mol-1 .The law of conservation of energy states that energy can neither be created nor destroyed but can be changed from one form to another.In order to achieve the answer, Hess’s law is used.– The specific heat capacity and the density of the solution are not actually the same as those of the water.As the absolute enthalpy of a substance is not possible to be determined and only the difference between reactants and products can be measured experimentally.
1702 words (4.3 pages)
ei=UTF-8&p=word%E6%89%93%E5%88%86%E7%B7%9A&rd=r1&fr2=tab-web&fr=FP-tab-web-t F. 6 Chemistry Notes Section III by Ms Sin W L. .Assuming (a) the solution in the plastic beaker has the same specific heat capacity as water, i. e. , 4.In other words, an energy change is path independent, only the initial and final states being of importance.Improvements -Use the vacuum flask calorimeter with a cork stopper instead of the polystyrene foam cup -Use a more accurate reading thermometer (e. g. Beckmann thermometer) – Find out the specific heat capacity of other materials other than water.com/question/question?
1696 words (4.2 pages)
I provided information on the increased demand for water due to population growth, economic growth and the industrial consumption of water.The substitution of this water can improve the issue of water scarcity.Therefore by educating users about adequate water preservation techniques, water demand can be decreased.Thus with population increasing by a vast number every year, the demand for fresh water will additionally increase, therefore adding to the water scarcity in Australia.5.0Recommendations In order to improve water use in Australia, the factors that need to be considered are; water reuse by using reclaimed water to flush toilets, wash clothes and water gardens, educating farmers on water use, by informing them on irrigation techni...
1015 words (2.5 pages)
Marriott has also reduced water usage by more than 15% over the last five years through the said program” (Marriott International Inc, USA and Global Tourism Business Award Winner, 2009).The hotel management can discipline and monitor the consumption of electricity, gas and water of hotel staff but it is very difficult for them to monitor the usages of hotel guests.It pays much attention to sourcing locally grown products and encourages its associates, staff and guests to minimize their impact on the environment by conserving energy, gas and water.Marriott’s Environmentally Conscious Hospitality Operations program is the hotel chain’s sustainability plan where it focuses on the conservation of water and energy, activities concerning clea...
2564 words (6.4 pages)
we can take a shower wihtin 5 minutes but we rather prefer talking long baths in the water tub.Same is the case when we wash our cars, even thought they dont need cleaning we still wash them unnecessarily.We do not realise that we are actually removing the vaccum cleaners of the area.Then comes forward the travelling which requires the 2 most important non renewable fossil fuels, oil and gas.Eventhough everyone is aware that these are formed over a 1000 years we yet waste them.It is time that we should start conserving them before it gets too late.If we really care about the survivl of the next generation we should start using water wisely and not waste it intentionally.Please start acting soon since no one is ready to face global change...
332 words (0.8 pages)
Water heater-instant .Water heater-storage .Ø Always use cold water in the rinse cycle .Energy conservation is often the most economical solution to energy shortages.§ Bring items taken out of refrigerators (like vegetables, milk etc) to room temperature before placing on the gas stove for heating Ø Use Solar Water Heater – a good replacement for a electric water heater Electronic Devices .
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A mother pushes her 120 Newton child, who is sitting on a swing.Assignment: Express your understanding of the concept and mathematics of the law of conservation of momentum by answering the following questions.When fighting fires, a firefighter must use great caution to hold a hose that emits large amounts of water at high speeds.A 1000 kg car travelling due east at 15 m/s is hit from behind and receives a forward impulse of 6000 Ns.A 1000 kg empty cart moving with a speed of 6 m/s is about to collide with a stationary loaded cart having a total mass of 5000 kg.
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Water is becoming scarce in different parts of the world, and this is because we don’t know how vital water conservation is.In addition, we all have to regularly check our house for water leaks.National Geographic “Water Conservation Tips” .“40 Shocking Facts About Water’’ June 2009. www.metadornetwork.com/change/40-shocking/facts-about-water/ .Finally, I think if the majority of us went to one of the mentioned solutions and acted mindfully, then we would save our precious environment from pollution, water scarcity, and many other serious environmental issues.
870 words (2.2 pages)
Unilever is also involve in the rags to riches women’s enterprise Program Payatas, and encourages its employees to participate in community development through the integrated league of Unilever Volunteers.Corporate Social Responsibility (Philippines) .The Unilever Foundation has made three-years commitment to support EVERY ONE, save the children’s biggest global campaign designed to save millions of lives through inspiring urgent action towards eradicating morality among children and mother.The Unilever Foundation is dedicated to improving quality of life through the provision of hygiene, sanitation, access to clean drinking water, basic nutrition and improving enhancing self-esteem.The company implement nutrition program in partnership...
939 words (2.3 pages)
7) Turn down the water heater temperature to a maximum of 120 degrees (to check the temperature, place a meat thermometer in a glass and run hot water into it for a couple of minutes).Appliance Wattage How much usage for 6p Cooker (one ring) 1300 45 mins Cooker (oven ring) 2150 30 mins Cooker (everything on) 11500 5 mins Electric bar heater 1000-3000 20-60 mins depending on wattage Extractor fan 75 13 hours Freezer 300 3hr 20 mins Hair drier 500-1000 40-120 mins Immersion heater 3000 20 mins Iron 1000 1 hour Kettle 2250 25 mins Light bulb 60 16 hours Low energy light bulb.For further information on how to save money on your electrical bill or to find out about your electrical usage, below are a few useful links: www.co. uk Page: 1 Moh...
976 words (2.4 pages)
Accountability in the army is important because soldiers as well as equipment, ammunition, food, water and other.It does require an essay 1000+ words, but it is worth $3,500!1000 word essay on any Army Transformation subject or event.Flyers from all branches of the Military Application includes a 500-700 word essay on the following After reviewing 27 Kraft Foods: Scholarships from $1000 to $3500 per year for the child of a full time employee your life or shaped your perceptions on the importance of animal welfare.Applicants must submit an essay of 1,000 words minimum with the title The BrokerFish $1,000 Scholarship Essay: 500 to 1,000 words on The Importance of an additional entry from a member of the United States Military for a $1,000 ...
1018 words (2.5 pages)
This just doesn’t attract people through the way these parks looks, but helps in the conservation and the preservation of the species.Parks and Preserves.Through this, I can wake up the minds of the visitors and others to help conserve and preserve the nature.to educate and bring the importance of these land areas, the living species and the ecosystem, and the natural environment.In addition to its appearance, a fountain of water rising upwards with lights around in the night.
548 words (1.4 pages)
As an average, the International Civil Aviation Organization (ICAO) defines an International Standard Atmosphere (ISA) with a temperature lapse rate of 6.49 K (oC)/ 1000 m (3.56oF or 1.98 K(o()/1000 Ft) from sea levels to 11 kilometers (36 000 ft) .In other words, the farther from the tropics you lay, the lower the sun angle is, which causes those locations to be cooler due to the indirect sunlight.The climate of a location is affected by its latitude, terrain and altitude, as well as nearby water bodies and their currents.Some of these solutions are Energy conservation, Renewable energy and sequestration.* Changes in the patterns and amount of rainfall, as well as changes in the timing and amount of stream flow, can affect water suppl...
2395 words (6.0 pages)
India has share the about 16 percent of the global population but the land posses only 4 percent of the water of the water resources (Government of the India planning commission, 2001).The development of the watershed committee will responsible for the maintenance of the watershed water bodies.Tank development programme is included the water conservation, soil conservation and natural resource conservation.Integrated approached is only possible through revivals of all water bodies and bridge and valley concept.The recommendation of the water bodies under the NAREGA project is 72000 tanks which were not previously not in used including the improving the inflow and storage capacity and improving the efficiency of the system.
1585 words (4.0 pages)
I am modeling this problem with air pressure and water pressure acting oppositely each others as vectors.Aspects related to physics I could discuss regarding the Atoll Reef are: the energy required to heat the water in the aquarium to a safe, uniform temperature for the fish to live in, the pressure exerted by the water on to the glass panel, the Young’s modulus of the panel, and why that kind of glass was chosen for it’s material properties.The increasing thickness of the glass panels which are placed lower is due to the increasing pressure of water as you get deeper into the water.P = 9.8 x 1000 x 8 .P = 9.8 x 1000 x 5 .
1237 words (3.1 pages)
Polluted water can spread many diseases.As the planet warms up, the water in the oceans will take up more space and water locked up in glaciers and the polar ice caps will start to melt.It is caused by the build-up of gases and water vapour in the atmosphere.This could cause sea levels to rise and many habitats will disappear under water.People who live in big cities are also badly affected by the increasing noise level which is as bad for human health as lack of fresh air and clean water.
520 words (1.3 pages)
Work and energy As we know from the law of conservation of energy: energy is always conserved.Here m, mass of water is 0.5 kg and the dt, the temperature rise = 3 deg C and we know the specific heat of water is 4186 J/kg.Water is used for this purpose.o C| Aluminium| 900| 0.215| Copper| 387| 0.0924| Glass| 837| 0.200| Gold| 129| 0.0308| Ice| 2090| 0.500| Iron| 448| 0.107| Silver| 234| 0.056| Steam| 2010| 0.480| Water| 4186| 1.00| .The ratio of the density of the substance to that of water is called the Specific Gravity (SG) of the substance.
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Species of trees are worshipped as (1) manifestation of gods, (2) representatives of particular stars and planets, and (3) symbols of the natural elements (energy, water, land, and air) each of which has its own independent and rational meanings.In Garhwal and Kumaon region, villages have a set of cultivated land, human settlement, and forest area; in the upper catchment of the villages, they used to have smaller or bigger water pounding structures such as Tals, Khals, Chals and Rou.The basic elements of nature (Earth), (Fire), (Water), (Air), and (Space) were worshipped in one form or another since ancient times in the Hindu mythology which as a result acquired the protection for spiritual and religious reasons.It is named Tapkeshw...
4773 words (11.9 pages)
Its electrical conductivity allows PCs, mobile phones, cars, TVs and cameras to work.So my theory is that without the founding of chemistry or discovery we wouldn’t be nearly as far as we are right now in society and I thank anyone who have contributed to this movement of society .Without it we would have no DNA, no proteins, or even no muscles.By 1000 BC, ancient civilizations used technologies that would eventually form the basis of the various branches of the subject.ALUMINIUM: used in alloy rims, train carriage they are even recycled.
456 words (1.1 pages)
carps, catfishes, prawns and fresh water pearl cultures.Utilization of country’s vast brakish water resource for fish and prawn culture is the main objective of this scheme.(2) To conduct specialized training and extension programmes in freshwater aquaculture to enable economic utilisation of the cultured and cultivable fresh water aquatic resources in the country.Brackish Water Aquaculture: .The animals and birds drinking such water face a fatal threat.
3363 words (8.4 pages)
From 1000 ml of the stock solution, 750 ml of the solution was diluted in 250 ml of distilled water in a volumetric flask, to make up 1000 ml of 750 ppm solution of Cu.From the results obtained, all the seeds germinated when soaked in distilled water.Light or darkness, temperature, water and oxygen and considered to be the important external conditions that may affect germination.From the trials, seeds soaked in distilled water did not germinate more than 80%, however in the actual experiment it was 100%.For example, 10 ml of 1000ppm solution was pipetted out and mixed with 990ml of distilled water in a 1000 ml volumetric flask to obtain a 10ppm solution, and so on.
3439 words (8.6 pages)
Just letting my children learn not to waste water and to appreciate the God-given resources we have available to us.On top of water pollution, the sea is being devastated daily by the huge nets and “Longlines” of commercial fishing vessels.Under these conditions you learn to conserve and not waste water in every way possible.One of the ways I taught my children to conserve water was not to leave the tap running when they were brushing their teeth.Obviously the reasons for the possible future scarcity of food, water, among other things, is the wasteful lifestyles that we have become accustomed to, especially here in the United States.
3672 words (9.2 pages)
The resulting water with the various pollutants is called leachate.As water percolates through the ground (like water does in a coffeemaker), chemicals can be released in the ground and get carried along in a process called leaching.The floor is contoured so water drains into a tile leachate collection system.It also has a bird hide and conservation area with nature trails that link up with existing green space in the metro.As the water percolates through Municipal Solid Waste (MSW), a noxious leachate is generated that consists of residues various decomposing organic matter mixed with various metals from rusting items in the landfills.
1146 words (2.9 pages)
Fortunately, the Pig Eradication Program ended up falling victim to the cobra effect.All in all, the Pig Eradication Program just became one of the most recent examples of the cobra effect in action.Such a program would allow for more control over the pig population in the future.In other words, the p... .Instead, Fort Benning inhabitants’ desires of a stable pig population would have been realized.
453 words (1.1 pages)
...following Friedrich Wohler’s synthesis of urea which proved that living organisms were, in theory, reducible to chemistry.Early civilizations, such as the Egyptians and Babylonians amassed practical knowledge concerning the arts of metallurgy, pottery and dyes, but didn't develop a systematic theory.A basic chemical hypothesis first emerged in Classical Greece with the theory of four elements as propounded definitively by Aristotle stating that that fire, air, earth and water were the fundamental elements from which everything is formed as a ... .In retrospect, the definition of chemistry has changed over time, as new discoveries and theories add to the functionality of the science.In 1663, "chymistry" meant a scientific art, by which...
414 words (1.0 pages)
Mining, tourism bioaccumulation and transboundry pollution mean that this land is a great threat.Tourism vs conservation.Within a week workers counted 24000 dead sea birds and 1000 sea otters.In the battle between tourism and conservation, tourism seems to always win.There is no denying that if tourism is not controlled people will destroy what they have come to see.
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About 71% of the earth’s surface is covered with water but 97% of this is seawater, 2% is locked in polar ice caps and glaciers and hardly 1% of water is available as freshwater.Even if water from bore-wells is used for toilet flushing (50lpcd) and cleaning (10lpcd), the load on the piped water supply will come down to 50%.An example of water recycling can be seen at Chatrapati Shivaji Terminus of the Central Railway which set up a water recycling plant of 0.2million capacity in 1999 at a cost of Rs24lakh .Rainwater harvesting by capturing runoff from the rooftops / terraces and surrounding surface water will not only increase ground water recharge and stop ingress of sea water but will get Mumbai out of its monsoon floods problem.Desali...
2195 words (5.5 pages)
Generally, in poor countries, the primary resources permit to survive (water, minerals, trees) but Ecotourism in the Galapagos Islands has provided an alternative source of incomes.There is a real correlation between conservation and development in the Galapagos Islands.First of all, it is clear that people need to work to live, but farming and industry have a high impact on the conservation of the environment.The conservation of the islands involves all tourists; they must pay high fees before entering in protected areas.What people can find is not only drinking water but also animals in particular tortoises.
2049 words (5.1 pages)
– Percentage of people accessing clean and safe water from the new established water .The project aims to supply clean and safe water to the community in order to reduce lack of sufficient water, eruption of diseases caused by unsafe water currently used.The project is anticipated to help increase cleanliness of people due to water availability and decrease of the diseases associated to water shortage e.g.Established and trained water committees/ Water user group ..The community suffers from water and spends a lot of time by fetching water far from their residence instead of working and earning income.
4604 words (11.5 pages)
Another element that is contributing to air pollution in Latin America is emissions from vehicles.The current data shows that china has 22 cars per 1000 people compared to United States which has 764 cars per 1000 people however china is on its way of becoming the dominant market for automobiles.The government is also adopting stricter energy conservation legislation and increasing international cooperation to help fight the problem of climate change (Rajan, 3330).However it is only Sao Paulo whose data on air pollution falls within the quality standards provided by world health organization.Population growth in urban centers in Latin America has also caused slides deforestation and soil loss for agriculture in the peripheries of the urb...
1244 words (3.1 pages)