116. Specific heat of a metal at very low temperatures varies as

1. 1. T

   
   
   

   2. T²

   
   
   

   3. T^3/2

   
   
   

   4. T³

   
   
   

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   N/A

   Correct Option: A

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117. The amount of heat required to raise the temperature of a body through 1 K is called its

1. 1. Thermal capacity

   
   
   

   2. Entropy

   
   
   

   3. Specific heat

   
   
   

   4. Water equivalent

   
   
   

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   N/A

   Correct Option: A

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118. The first operation involved in a Carnot cycle is

1. 1. Isothermal expansion

   
   
   

   2. Adiabatic expansion

   
   
   

   3. Isothermal compression

   
   
   

   4. Adiabatic compression

   
   
   

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   N/A

   Correct Option: A

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119. PV / T = constant is true for

1. 1. Isothermal changes only

   
   
   

   2. Adiabatic changes only

   
   
   

   3. Both isothermal and adiabatic changes

   
   
   

   4. Neither isothermal nor adiabatic changes

   
   
   

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   N/A

   Correct Option: C

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120. In which of the following process the internal energy of a system remains constant?

1. 1. Adiabatic

   
   
   

   2. Isothermal

   
   
   

   3. Isobaric

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

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