1. Tardigrade
  2. Question
  3. Physics
  4. A body A is at a temperature TA and a body B is at a temperature TB such that TA>TB. Bodies A and B are connected. Which of the following statements is correct related to two bodies? I. Body A is hotter than body B. II. Heat flows from A to B. III. Heat flows from B to A.

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Q. A body $A$ is at a temperature $T_{A}$ and a body $B$ is at a temperature $T_{B}$ such that $T_{A}>T_{B}$. Bodies $A$ and $B$ are connected. Which of the following statements is correct related to two bodies?
I. Body $A$ is hotter than body $B$.
II. Heat flows from $A$ to $B$.
III. Heat flows from $B$ to $A$.

Thermal Properties of Matter

Solution:

If $T_{A}>T_{B}$, i.e. body $A$ is hotter than body $B$, then heat flows from $A$ to $B$, i.e. from body at a higher temperature to body at a lower temperature till the temperature of both the bodies becomes same.
So, statements I and II are correct but III is incorrect.