A gas is suddenly expanded such that its final volume becomes 3 times

A gas is suddenly expanded such that its final volume becomes 3 times its intial volume. If the specific heat at constant volume of the gas (Cv)=2R. Then the ratio of initial to final pressure is nearly equal to

Options

(a) 5
(b) 6
(c) 7
(d) 8

Correct Answer:

5

Explanation:

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