Heat Calculations Practice Quiz
Science 10
October 19, 2010
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1. When 3.0 kg of water is warmed from 10.0°C to 80.0°C, how much heat energy is needed?
2. Calculate the temperature change when 10,000.0 g of water loses 232,000 J of heat.
3. 1960 J of heat are added to 500. g of copper taking its temperature from 25.0oC to 35.1oC. What is the specific heat capacity of copper?
4. 2.52 x 104 J of heat are added to 2.0 kg of mercury to reach a final temperature of 130°C. What was the initial temperature of the mercury? (NOTE: The specific heat capacity of mercury is 0.14 J/goC)
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1. When 3.0 kg of water is warmed from 10.0°C to 80.0°C, how much heat energy is needed?
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2. Calculate the temperature change when 10,000.0 g of water loses 232,000 J of heat.
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3. 1960 J of heat are added to 500. g of copper taking its temperature from 25.0oC to 35.1oC. What is the specific heat capacity of copper?
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4. 2.52 x 104 J of heat are added to 2.0 kg of mercury to reach a final temperature of 130°C. What was the initial temperature of the mercury? NOTE: The specific heat capacity of mercury is 0.14 J/goC)
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The 500.0 g piece of metal from question 13 (recall c = 0.24 J/goC) is again heated to 100oC and dropped into a bucket of water initially at 10.0 oC. If the final temperature of the water and metal is 12.0 oC then how much water is in the bucket?
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