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Assertion : On removing the value, the a...

Assertion : On removing the value, the air escaping from a cycle tube becomes cool.
Reason : On removing the value, adiabatic expansion takes place.

A

If both assertion and reason are true and the reason is correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true, but the reason is false.

D

If assertion is false but the reason is true

Text Solution

Verified by Experts

The correct Answer is:
A
In the cycle tube, air is pressent at the pressure greater than the atmosphere pressure. As soon as the value is removed. The gas expands suddenly i.e. Adiabatic expansion takes place. During adiabatic expansion, the air performs work at the expense of its internal energy. hence, the temperature decreases and the cycle tube becomes cool.
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