Multiple Choice
The relationship between the vapor pressure of a liquid and temperature can be expressed by the Clausius-Clapeyron equation: Log[P2/P1] = [ΔHvap/R] × [1/T1 - 1/T2]
Ethanol (C2H5OH) has a normal boiling point of 78.3°C and, with ΔHvap = 39.3 kJ/mol. What is the vapor pressure of ethanol at 50.0°C?
A) 118 torr
B) 234 torr
C) 354 torr
D) 485 torr
E) 670 torr
Correct Answer:
Verified
Correct Answer:
Verified
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