Question

Suppose a body A at a higher temperature is brought into contact with another body B at a lower temperature. Which of the following is/are true?

• A. Atoms of Body A become less active
• B. Atoms of Body B become more active
• C. Atoms of Body A become more active
• D. Atoms of Body B become less active

Answer 1

Answer: (A), (B)

The correct options are
A

Atoms of Body A become less active

B

Atoms of Body B become more active

A body having a higher temperature has more active atoms than a body with a lower temperature. Hence, in the above situation, A has more active atoms. When it is brought into contact with body B at a lower temperature, the temperature of B increases. Hence, atoms of B will become more active. The temperature of A reduces, hence the atoms of A will become less active.