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PhysicsJEE Main 21 Jan 2026, Shift 1·Q24·Numerical·Easy–moderate

Thermodynamics · Laws of thermodynamics

10 mole of oxygen is heated at constant volume from 30∘30^\circC to 40∘40^\circC. The change in the internal energy of the gas is cal. (The molecular specific heat of oxygen at constant pressure, Cp=7C_p = 7 cal./mol ∘^\circC and R=2R = 2 cal./mol ∘^\circC.)

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