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calorimeter

a calorimeter is a instrument used to measure the heat of a substance.

calorie

the amount of energy require to raise the temp

specific heat

the amount of heat required to raise the temp of given substance

specific heat capacity can be described as a substances resistance to temperature changes. which substance has a greater specific heat capacity copper or water?

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-water because it has a greater specific heat
-the water resisted temp more than copper

what was the final temp of the copper and water?

34.96

how much did the temp of the copper change?

55.04

how did the temp of the water change

4.96

how do you think increasing the water mass would affect the final temp

the final temp would be lower

how do you think decreasing the coppers mass would affect the final temp

the final temp would be lower

how do you think increasing or decreasing the coppers initial temp would affect the final temp?

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-coppers final temp would be high
-water final temp would be lower

what was the effect of increasing the waters mass?

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-the final temp was lower
-water has a high capacity

what was the effect of decreasing the coppers mass

-the final temp was low
-less heat energy

what was the effect of changing the initial temp of the copper?

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-the initial temp was raised

• final temp was higher
  -less heat energy

how does changing the intital mass of the copper affect how much heat energy it has

the greater the mass, the greater the amount of heat energy

how doess changing the intial temp of the copper affect how much heat energy has

the higher the intial temp the greater the amount of energy

what you have learned so far about heat transfer to explain how hot rocks can be used to steam

the rock has a greater amount of heat energy which transfers to water causing vaporization.

why fo you think only a small ladle- full of water is poured on the rocks at one time?

water heats of vaporization is high and too much water would cool them down

how do you think you can use the calorimeter to compare the specific heat capacities of the substances listed on the Gizmo

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-the calorimeter shows changes in water temp when set to certain substances.
-comparing intial and final temp can give you the high and low specific heat energy

which substance do you think will have the the highest specific heat capacity? why?

granite will have the highest heat capacity because its a mineral

of the three substances which caused the largest temperature change in the water? What does this indicate about its relative specific heat capacity?

granite had the greatest change in water temp, showing the specific heat is higher than copper and lead

rank the three substances in order of their specific heat capacities from highest to lowest

granite,copper, lead

how do you think the specific heat capacity of ice will compare to that of copper, copper, and lead

I think the specific heat of ice will be higher than the specific heat of all three

what do you think is happening when the ice line on the graph is at 0 for a long period of time? why do you think the line disappears after that

there is changing from a solid to a liquid. the line disappears because the ice is melting

how does this change in the waters temp compare to the change caused by the other substances you tested

the change was much greater

do you think all the ice melted. explain?

yes the ice melted as the line of the graph disappeared

how did the water temp change while the ice was heating? how much did it change while the ice was melting

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-when the ice was heating it changed by -14C
when it was melting the temp changed about -22C

how did this experiment demonstrate ices specific high capacity

the experiment showed ice causes a greater in water temp than lead, copper, and granite

what was the final temp of the copper and water

34.96

how much did the temp of the copper change

55.04

how much did the temp of the water change

4.96

what was the final temp of ice

28.83