Heat Capacity

MCQsQuestion.com has 9 Question/Answers about Topic Heat Capacity

If a cup of tea at 50 °C is allowed to cool to room temperature, heat released would be (assume room temperature to be equal to 25 °C and heat capacity of cup and tea to be = 5.0 kJ ⁄ K)

If a cup of tea at 50 °C is allowed to cool to room temperature, heat released would be (assume room temperature to be equal to 25 °C and heat capacity of cup and tea to be = 5.0 kJ ⁄ K)
  • A. 25 kJ
  • B. 50 kJ
  • C. 125 kJ
  • D. 250 kJ
  • Correct Answer: Option C

Assuming heat capacity of a 10 g of water to be 42 J ⁄ K, heat required to raise its temperature from 25 °C to 35 °C would be

Assuming heat capacity of a 10 g of water to be 42 J ⁄ K, heat required to raise its temperature from 25 °C to 35 °C would be
  • A. 42 J
  • B. 420 J
  • C. 4200 J
  • D. None of above
  • Correct Answer: Option B

SI unit of heat capacity is

SI unit of heat capacity is
  • A. Joule
  • B. Joule ⁄ kilogram
  • C. Joule ⁄ (kilogram × kelvin)
  • D. Joule ⁄ kelvin
  • Correct Answer: Option D

SI unit of specific heat capacity is

SI unit of specific heat capacity is
  • A. Joule
  • B. Joule ⁄ kilogram
  • C. Joule ⁄ (kilogram × kelvin)
  • D. Joule ⁄ kelvin
  • Correct Answer: Option C

Heat applied to a piece of metal will cause

Heat applied to a piece of metal will cause
  • A. Increase in its mass
  • B. Increase in its volume
  • C. Increase in its density
  • D. Increase in its internal energy
  • Correct Answer: Option D

Specific heat capacity of a substance is equal to

Specific heat capacity of a substance is equal to
  • A. Amount of heat required to raise temperature of a 1 kg of a substance by 1 K
  • B. Amount of heat required to raise temperature of a substance by 1 K
  • C. Amount of heat required to change phase of a substance from solid to liquid without any change in temperature
  • D. Amount of heat required to change phase of a substance from liquid to gas without any change in temperature
  • Correct Answer: Option A

Heat capacity of a substance is equal to

Heat capacity of a substance is equal to
  • A. Amount of heat required to raise temperature of a 1 kg of a substance by 1 K
  • B. Amount of heat required to raise temperature of a substance by 1 K
  • C. Amount of heat required to change phase of a substance from solid to liquid without any change in temperature
  • D. Amount of heat required to change phase of a substance from liquid to gas without any change in temperature
  • Correct Answer: Option B

Heat capacity of a substance is defined as

Heat capacity of a substance is defined as
  • A. Amount of heat required to raise temperature of a substance by 1 K
  • B. Amount of heat required to raise temperature of a substance by 1 °C
  • C. Specific heat capacity × mass of substance
  • D. All of above
  • Correct Answer: Option D

Heat capacity of a substance is

Heat capacity of a substance is
  • A. Inversely proportional to change in temperature
  • B. Directly proportional to change in temperature
  • C. Inversely proportional to square of change in temperature
  • D. Independent of change in temperature
  • Correct Answer: Option A