Practice question
Question
Calculate the heat absorbed when 32 g of sulfur is heated from 30°C to 130°C at constant pressure. (Cp = 22.7 J/mol·K, molar mass = 32 g/mol)
Explanation
Moles = 32 / 32 = 1 mol, Δ T = 130 - 30 = 100 K, qp = nCpΔ T = 1 × 22.7 × 100 = 2270 J = 2.27 kJ.
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