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Thermodynamic Processes

Assertion A :...

Question

Assertion (A) : Two systems which are in thermal equilibrium with a third system, are in thermal equilibrium with each other.
Reason (R) : The heat flows always from a system at higher temperature to a system at a lower temperature.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

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B

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

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C

Assertion is true but Reason is false.

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D

Both Assertion and Reason are false.

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Solution

The correct option is D Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
The heat flows from a system at higher temperature to a system at a lower temperature. Therefore, two systems which are in thermal equilibrium are made to contact with a third system. The three systems will eventually reach in thermal equilibrium with each other.

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