Two bodies A and B are brought into contact with one another and heat flows from A to B. Which of the following statement is true?

Activity of atoms in body A increases

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Activity of atoms in body B increases

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Activity of atoms in both the bodies remains constant

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Can’t be said

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Solution

The correct option is A
Activity of atoms in body A increases

As heat flows from A to B, A is hotter in comparison with B.

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Two bodies A and B are brought into contact with one another and heat flows from A to B. Which of the following statement is true?

The correct option is A Activity of atoms in body A increases As heat flows from A to B, A is hotter in comparison with B.

The correct option is A
Activity of atoms in body A increases

As heat flows from A to B, A is hotter in comparison with B.