A certain substance has a heat of vaporization of 64.08 kJ/mol. At what Kelvin temperature will the vapor pressure be 6.50 times higher than it was at 355 K?

Explanation:

Given

-- Initial vapour pressure

--- Final vapour pressure

---- Initial temperature

--- Final temperature

--- Enthalpy of vaporization

Required

Calculate T2

To do this, we make use of Clausius-Clapeyron equation.

Which states that:

Where:

--- Universal Gas constant

becomes

Take LCM

Cross Multiply

Collect Like Terms

Make T2 the subject

The final temperature is 388.50K

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po-215 i got it right on the quiz