SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If I have 2 blocks of Aluminium (one of 1kg and one of 10 kg) and heat them up with 6, 000 Joules of energy.Which one will have the SMALLEST change in temperature?
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1 kg
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10 kg
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They both heat up to the same temperature
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It depends on the temperature of the room
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Explanation:
Detailed explanation-1: -Since the specific heat capacity of aluminium (899 Jkg−1C−1 ) is more than that of copper (387 Jkg−1C−1) so aluminium would require more amount of heat than copper to raise an equal amount of temperature.
Detailed explanation-2: -change in temperature = (100-25) = 75.0°C. change in thermal energy = mass × specific heat capacity × change in temperature. = 0.200 × 4, 180 × 75.0. = 62, 700 J (62.7kJ)
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