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JEE Main 2026 Physics question

PhysicsThermodynamicsJEE Main 2026

A vessel contains 0.15 m³ of a gas at pressure 8 bar and temperature 140°C with = 3R and = 2R. It is expanded adiabatically till pressure falls to 1 bar. The work done during this process is kJ. (R is gas constant)

Answer: 120

Solution

γ = / = 1.5. V₂ = V₁(P₁/P₂ = 0.15 × = 0.6 m³. W =

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Question ID VK-015231