Practice question
Question
What is the work done when 2 mol of an ideal gas expands isothermally and reversibly from 5 L to 10 L at 300 K? (R = 8.314 J/mol·K)
Explanation
w = -nRT ln(V₂/V₁) = -2 × 8.314 × 300 × ln(10/5) = -2 × 2494.2 × 0.693 = -3455.6 J.
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