Practice question
Question
What is the work done when 1 mol of an ideal gas expands isothermally and reversibly from 1 atm to 0.5 atm at 300 K? (R = 8.314 J/mol·K)
Explanation
w = -nRT ln(P₁/P₂) = -1 × 8.314 × 300 × ln(1/0.5) = -2494.2 × 0.693 = -1728 J.
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