A body A is at a temperature TA and a body B is at a temperature TB such that TATB. 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.

Question

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. (A) Both I and II (B) Only I (C) Both II and III (D) Both I and III

Tardigrade Admin · Accepted Answer

If TA>TB, 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.

Q. 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.

Both I and II

Only I

Both II and III

Both I and III

If TA​>TB​, 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.

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.