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Assertion: In free expansion of a gas i...

Assertion: In free expansion of a gas inside an aidabatic chamber Q, W and `DeltaU` all are zero.
Reason: In such an expansion `pprop1/V`.

A

(a) If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

(b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

(c) If Assertion is true, but the Reason is false.

D

(d) If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
B
`Q=0` as chamber is adaibatic
`W=0` as expansion is taking place is vacuum.
`:.` `DeltaU=Q-W=0`
`:.` U or T constant
or `pV=constant
`:.p prop 1/V`
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