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71. The ratio of two specific heats of gas

The ratio of two specific heats of gas CP/CV for argon is 1.6 and for hydrogen is 1.4. Adiabatic elasticity of argon at pressure P is E. Adiabatic elasticity of hydrogen will also be equal to E at the pressure

(a)   P                                                 (b)  (8/7) P

(c)  (7/8) P                                         (d)   1.4 P

Answer-b

(6)

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