Q.

In an adiabatic expansion of air the volume increases by 5%. What is the percentage change in pressure?

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a

7%

b

6%

c

4%

d

3%

answer is A.

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Detailed Solution

PVγ=constant ⇒P∞V-γ ⇒            ∆PP=-γ∆VV For air γ=75
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In an adiabatic expansion of air the volume increases by 5%. What is the percentage change in pressure?