Three samples A, B and C of the same ideal gas (γ = 1.5) have equal volumes and temperatures. The volume of each sample is doubled, the process being isothermal for A, adiabatic for B and isobaric for

Question

Three samples A, B and C of the same ideal gas (γ = 1.5) have equal volumes and temperatures. The volume of each sample is doubled, the process being isothermal for A, adiabatic for B and isobaric for C. If the final pressures are equal for the three samples, then the ratio of their initial pressures is

TestHub · Accepted Answer

Final pressure P f . A: P A V = P f · 2V, so P A = 2P f . B: P B V γ = P f (2V) γ , so P B = 2 1.5 P f = 2√(2)P f . C: isobaric, P C = P f . Ratio P A : P B : P C = 2 : 2√(2) : 1. Matches (c).

Chemistry - Thermodynamics - I Question with Solution | TestHub

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