During an adiabatic process, if the pressure of the ideal gas is proportional to the cube of its temperature, the ratio γ=CpCv is (Cp= Specific heat at constant pressure ; Cv=Specific heat at constant volume)
A
75
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B
43
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C
53
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D
32
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Solution
The correct option is C32 Given P∝T3 PT−3=constant For an adiabatic process, we have PTγ1−γ=constant Comparing these two equations, we get γ1−γ=−3 γ=−3+3γ 2γ=3 γ=32 Option D.