Essays Tagged: "Heat"

The Greenhouse Effect

he greenhouse effect occurs when gases such as methane, carbon dioxide,nitrogen oxide and CFCs trap heat in the atmosphere by acting as a pane ofglass in a car. "The glass" lets the sun light in to ma ... re by acting as a pane ofglass in a car. "The glass" lets the sun light in to make heat but when theheat tries to get out the gases absorb the heat. Holding this heat in causesheat waves, droughts and ...

(4 pages) 95 0 4.0 Feb/1997

Subjects: Science Essays > Environmental Science

Greenhouse Effect

he greenhouse effect occurs when gases such as methane, carbon dioxide,nitrogen oxide and CFCs trap heat in the atmosphere by acting as a pane ofglass in a car. "The glass" lets the sun light in to ma ... re by acting as a pane ofglass in a car. "The glass" lets the sun light in to make heat but when theheat tries to get out the gases absorb the heat. Holding this heat in causesheat waves, droughts and ...

(4 pages) 81 0 3.5 Sep/1996

Subjects: Science Essays > Environmental Science

Nuclear Waste Management

tNuclear energy harnesses the energy released during the splitting or fusing of atomic nuclei. This heat energy is most often used to convert water to steam, turning turbines, and generating electrici ... e primary way of storing the nuclear waste is storage. Since spent fuel continues to be a source of heat and radiation after it is taken from the reactor, it can be stored underwater in a deep pool at ...

(5 pages) 82 0 4.0 Dec/1997

Subjects: Science Essays > Environmental Science

Coursework...on how much energy content is in food.

it. This energy is released slowly in our bodies but more quickly if the food is burnt it air. This heat energy can be used to heat water. Some foods store and can release a lot more energy than other ... also keep the food the same distance away from the boiling tube, keep the bunsen burner on the same heat and use the same measuring cylinder each time I measure out the water.Apparatus·Boiling ...

(3 pages) 29 0 2.4 Nov/2003

Subjects: Science Essays

Chemisty review on mass/matter and seperating mixtures

ChemistryMass and EnergyI -Energy- ability to do work/give of heat-3 categories: radiant- uv, infrared, sunPotential- storedKinetic- energy of motion-Measuring en ... rgy of motion-Measuring energy- SI unit of Joule (j) or Calorie-Calorimeter- device used to measure heat movements-Fossil Fuels-coal, petroleum, natural gasII- Chemical reactions - law of conservation ... be created nordestroyed.-Reactant- left, starting-Product- right, end-Endothermic reaction- absorb heat (candle)-Exothermic reaction- releases heat (running)-III- Temperature- freezing point of water ...

(1 pages) 30 0 4.3 Mar/2004

Subjects: History Term Papers > North American History

Nuclear Retort--A Classical Argument

ires the splitting of uranium atoms. The actual division of the atom produces tremendous amounts of heat. This heat is used to boil water creating steam. The steam powers turbine-generators which prod ...

(2 pages) 26 0 4.3 Apr/2004

Subjects: Science Essays > Environmental Science

Crude Oil - Research on Products of Crude Oil and Waste Processes

er the centuries. The terrific pressure of these layers, and of the water on top of them, generated heat. This heat together with other chemical action, affected the remains of the animals and plants. ... acture of other products, because of their different boiling points they can be separated easily by heating the crude oil and drawing it off at different fractions. Industrial distillation towers for ...

(9 pages) 107 1 4.0 Apr/2004

Subjects: Science Essays > Chemistry

The combustion of Alcohols investgation: Investigate the heat energy in a range of alcohol's used as fuels.

Combustion of AlcoholsTHE COMBUSTION OF ALCOHOLSPROBLEMInvestigate the heat energy in a range of alcohol's used as fuels.HYPOTHESISI predict that octanol will release the ... energy in a range of alcohol's used as fuels.HYPOTHESISI predict that octanol will release the most heat energy. This is because there is more bond energy in that molecule than the other alcohols.With ... H20OCTANOL2C8H15OH + 24O2(r) 16C02 + 18H20We can see from the table above Octanol releases the most heat energy. This clearly shows that there is a correlation between the number of bonds in the molec ...

(5 pages) 36 0 3.0 May/2004

Subjects: Science Essays > Chemistry

Comparing The Enthalpy Changes Of Combustion Of Different Alcohols.

fuel burns completely. A value for the enthalpy change can be obtained by using the burning fuel to heat water and using fact that 4.2j of energy are required to raise the temperature of 1g of water b ... halpy change of combustion for my chosen alcohols.Ø I will firstly burn my chosen alcohol to heat 100cm3 of waterØ Remembering that 4.2 j of energy is needed to increase the temperature ...

(14 pages) 36 0 5.0 Jun/2004

Subjects: Science Essays

The Greenhouse Effect

he greenhouse effect occurs when gasessuch as methane, carbon dioxide, nitrogen oxide and CFCs trap heat in theatmosphere by acting as a pane of glass in a car. The glass letsthe sunlight in to make h ... ere by acting as a pane of glass in a car. The glass letsthe sunlight in to make heat, but when the heat tries to get out the gasesabsorb the heat. Holding this heat in causes heat waves, droughts,and ...

(5 pages) 107 0 3.9 Dec/2004

Subjects: Science Essays > Earth Sciences

Combustion Of Alcohols

is:H H | | H - C - C - O- H + 3[O=O] ? 1/2[O=C=O] + 3[H-O-H] | | H HThis reaction is exothermic, as heat is given out. This is because the amount reactant energy is more than the product energy the di ... t energy the difference between this is ?H, therefore some energy has been given out in the form of heat.The energy is given out when forming the bonds between the new water and carbon dioxide molecul ...

(9 pages) 36 0 3.3 Jan/2005

Subjects: Science Essays > Chemistry

Australian ecotherms and endotherms

p body cool PhysiologicalA small mammal, with same body temp as a larger mammal looses more heat than the larger This is due to the fact the small mammal has a larger SA:V ratio. More ... ger SA:V ratio. More skin is in contact with the environment, compared to size, thus it looses more heat StructuralC- EXAMPLES OF AUSTRALIAN EDOTHERMSPotoroos5- The breathing rate remains cons ...

(5 pages) 34 0 0.0 Mar/2005

Subjects: Science Essays > Biology

TOK: Who am I and how do I know?

world and life on earthBaker GodFair skinned dough YouthOven door Life after deathTimer End of lifeHeat Passing of timeBlackening AgingGroup of Pretzels FamilyHard Crust Breaking an emotional shellBa ... lyHard Crust Breaking an emotional shellBatch of Pretzels GenerationsI can't take it anymore!! This heat is more than I can bear.... how can I escape from this oven of life that sentences me to an ine ...

(4 pages) 62 0 0.0 Apr/2006

Subjects: Literature Research Papers > Creative Writing > Descriptive Essays

Cooling of the Human Body with Respect to Vaporization of Sweat

(Freudenrich).To convert sweat from a liquid to a vapor, the system requires a particular amount of heat, the heat of vaporization. This heat is the energy used to speed up the movement of the water m ... ey can escape into the air, or evaporate. As evaporation occurs, the remaining liquid cools because heat has been removed from it to supply the heat of vaporization that is necessary to make the phase ...

(1 pages) 973 0 5.0 Sep/2006

Subjects: Science Essays > Biology > Human Biology

A comparison between the Enthalpy of formation of MgO acquired via a series of reactions and Hess's Law (will they be equivalent?)

Enthalpy of FormationBackgroundThe enthalpy of formation (ΔH°f) is defined as the heat change associated with the formation of one mole of a compound from its elements in their stand ... ry difficult to measure most enthalpies of formations in a standard laboratory due to the amount of heat or toxic products that are formed. Thus, in order to acquire the desired results, one must use ...

(2 pages) 2952 0 0.0 May/2007

Subjects: Science Essays > Chemistry

Polluting Power Plants

grees Fahrenheit. This rise in temperature is due to the air pollution in the sky trapping in extra heat. This heat collects and after awhile there is a rise in temperature. All of this air pollution ...

(3 pages) 24 0 3.0 Aug/2001

Subjects: Science Essays > Environmental Science

Convection

Introduction Heat is transferred through convection, conduction and radiation. Convection is the transfer of heat ... n. Convection is the transfer of heat through the movement of matter. Conduction is the transfer of heat or energy between two objects that are in contact with each other. Radiation is the transfer of ... window was covered with plastic wrap so that nothing could escape.Analysis The candle was a heat source that sped up the movement of the molecules. The molecules were less dense and you could ...

(2 pages) 1738 0 3.0 Sep/2001

Subjects: Science Essays > Chemistry

The aim of our lab was to determine the specific heat of copper and to compare with the actual result and then find the experimental error.

Specific Heat Labhttp://honolulu.hawaii.edu/distance/sci122/Programs/p21/image.gifAim:Specific heat is the am ... http://honolulu.hawaii.edu/distance/sci122/Programs/p21/image.gifAim:Specific heat is the amount of heat per mass required to raise the temperature of 1ºC. Different materials have different spec ... per mass required to raise the temperature of 1ºC. Different materials have different specific heats. The aim of our lab was to determine the specific heat of copper and to compare with the actua ...

(3 pages) 14 0 2.3 Sep/2007

Subjects: Science Essays > Chemistry

Adding Additional Heat To A Home

Adding Additional Heat to a Home There are several ways to add additional heat to a home. Two popular methods are gas ... ng stoves are more conventional. Gas logs and wood burning stoves are both effective ways of adding heat to a home.Gas logs are extremely easy to use. The porcelain logs are placed inside the fireplac ... place just like wood. A small flame flickers to make the logs look more real. If a person wants the heat to be circulated in the room, a blower is used to push the heat into the area. The first step i ...

(3 pages) 524 0 5.0 Feb/2008

Subjects: Science Essays > Environmental Science

Adding Additional Heat To A Home

There are several ways to add additional heat to a home. Two popular methods are gas logs and wood-burning stoves. Gas logs are more advanced ... ng stoves are more conventional. Gas logs and wood burning stoves are both effective ways of adding heat to a home.Gas logs are extremely easy to use. The porcelain logs are placed inside the fireplac ... place just like wood. A small flame flickers to make the logs look more real. If a person wants the heat to be circulated in the room, a blower is used to push the heat into the area. The first step i ...

(3 pages) 441 0 3.0 Feb/2008

Subjects: Science Essays > Environmental Science