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Practice question

MCQ

Question

What is the change in internal energy for 0.7 moles of an ideal gas heated from 280 K to 340 K at constant volume? ( C_v = 20.8 J mol⁻¹ K⁻¹ )

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Explanation

**Adiabatic work** W = ∫ P dV = (P₁V₁ - P₂V₂)/(γ-1), for expansion V₂>V₁ P₂

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