Problem: Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1°C.At what temperature does benzene boil when the external pressure is 405 torr ?

FREE Expert Solution

For this problem, we can use the Clausius-Clapeyron Equation:



lnP2P1 = -HvapR[1T2-1T1]


where:

P1 = vapor pressure at T1

P2 = vapor pressure at T2

ΔHvap = heat of vaporization (in J/mol)

R = gas constant (8.314 J/mol•K)

T1 and T2 = temperature (in K).


Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1°C.

At what temperature does benzene boil when the external pressure is 405 torr ?


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Problem Details

Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1°C.

At what temperature does benzene boil when the external pressure is 405 torr ?

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