1. A closed bottle containing water at room temperature is taken to the moon and then the lid is opened. The water will

1. 1. Freeze

   
   
   

   2. Boil

   
   
   

   3. Decompose into hydrogen and oxygen

   
   
   

   4. Not change at all

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

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2. The SI unit of mechanical equivalent of heat is

1. 1. joules-calorie

   
   
   

   2. Joules/calorie

   
   
   

   3. Calorie-ergs

   
   
   

   4. Ergs / calorie

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

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3. During adiabatic compression of a gas its temperature

1. 1. Remains constant

   
   
   

   2. Becomes zero

   
   
   

   3. Falls

   
   
   

   4. Rises

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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4. 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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5. The energy that can harness heat stored below the earth's surface is known as

1. 1. Thermal energy

   
   
   

   2. Nuclear energy

   
   
   

   3. Tidal energy

   
   
   

   4. Geo-thermal energy

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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