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.
• 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.
• C. The process of heat exchange among bodies is a continuous phenomena.
• D. The heat exchange occurs at absolute zero temperature as well.

Answer 1

The correct option is D The heat exchange occurs at absolute zero temperature as well.

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