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24/09/2021 3:53 pm
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A gas expands adiabatically at constant pressure such that T ∝ V-1/2. The value of γ(Cp,m /Cv,m) of the gas will be :
(a) 1.30
(b) 1.50
(c) 1.70
(d) 2
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24/09/2021 3:59 pm
Correct answer: (b) 1.50
Explanation:
T ∝ \(\frac{1}{\sqrt{}V}\); TV-1/2 = constant
For adiabatic process,
TVγ-1 = constant
∴ γ - 1 = \(\frac{1}{2}\), γ = \(\frac{3}{2}\)