EWT | Academic Question

Questions
Question (1)
QN0038435

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

  • (A)

    second law of thermodynamics

  • (B)

    conservation of momentum

  • (C)

    conservation of mass

  • (D)

    first law of thermodynamics

Correct Answer: A
Explanation:

External amount of work must be done in order to flow heat from lower temperature to higher temperature. This is according to second law of thermodynamics.

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