"Heat cannot by itself flow from a body at lower temperature to a body at higher temperature" is a statement or consequence of

  • Option 1)

    second law of thermodynamics

  • Option 2)

    conservation of momentum

  • Option 3)

    conservation of mass

  • Option 4)

    first law of thermodynamics.

 

Answers (1)

As we learnt in

Second Law of Thermodynamics -

Clausius Statement

- wherein

Heat cannot flow from a cold body to a hot body without the performance of work by some external agency.

 

This statement comes naturally from the second law of thermodynamics. Heat can only flow from the body at lower temperature to a body at higher temperautre when we do work on the body.

 


Option 1)

second law of thermodynamics

This option is correct.

Option 2)

conservation of momentum

This option is incorrect.

Option 3)

conservation of mass

This option is incorrect.

Option 4)

first law of thermodynamics.

This option is incorrect.

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