Heating and Cooling Curves
13. Liquids, Solids & Intermolecular Forces / Heating and Cooling Curves / Problem 5
Calculate the heat required in kJ for in the process of vaporizing 36.0 g of ethanol at 25°C to the vapor phase at 78°C. Write your answer using 2 significant figures
Date for ethanol:
Tf = -114°C
Tb = 78°C
ΔHfus = 5.02 kJ/mol
ΔHvap = 38.56 kJ/mol
CEtOH(s) = 0.97 J/g-K
CEtOH(l) = 2.3 J/g-K
CEtOH(g) = 2.03 J/g-K
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