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Provost Theory of Exchange

Which of the ...

Question

Which of the following statements is incorrect with regard to Prevost's theory of heat exchange?

A

All bodies absorb as well as emit thermal radiations at all temperatures greater than absolute zero.

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B

If the amount of radiation absorbed by a body is equal to that emitted by the body, then the body will be in thermal equilibrium.

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C

The process of heat exchange among bodies is a continuous phenomena.

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D

The heat exchange occurs at absolute zero temperature as well.

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Solution

The correct option is D The heat exchange occurs at absolute zero temperature as well.
According to Prevost's theory, at absolute zero [ $0 K$ or $- 273^{\circ} C$ ] the heat exchange between the body and surroundings stop.
The heat exchange is a continuous phenomena as the molecules are in continuous state of agitation at any temperature above absolute zero.

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Provost Theory of Exchange

Standard XII Physics

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