Question

In which of the following cases, the heat will flow from body X to body Y?

• A. When heat content of body X is greater than that of body Y.
• B. When temperature of body X is greater than that of body Y.
• C. When heat content of both the bodies are same.
• D. When both heat content and temperature of body Y is greater.

Answer 1

The correct option is B When temperature of body X is greater than that of body Y.

Heat flows between two bodies because of difference in their temperatures and not because of difference in heat content. Heat flows from a body at higher temperature to a body at lower temperature.