GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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(For items 36-40) Problem:An aluminum tea kettle with mass 1.50 kg and containing 1.80 kg of water is placed on a stove. If no heat is lost to the surroundings, how much heat must be added to raise the temperature from to 20.0
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910 Joules of heat is needed for 1 kg of aluminum to have a 1K increase in temperature.
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910 Joules of heat is needed for 1 kg of aluminum to have a 1C
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4190 Joules of heat is needed for 1 kg of water to have a 1K increase in temperature.
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All of the above.
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Explanation:
Detailed explanation-1: -The mass of the aluminum kettle = 1.05 kg = 1, 050 g (given). Therefore, the heat capacity of the aluminum kettle in joules = 1050 0.897 = 941.85 J 0 C .
Detailed explanation-2: -a) The heat capacity of aluminum is Cp=0.900JgK C p = 0.900 J g K which is equivalent to Cp=0.334JmolK C p = 0.334 J m o l K .
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