Can you answer this awesome chemistry question for me?

Question

The standard enthalpy of vaporization (DeltaH°vap) of n-pentane (CH3(CH2)3CH3) is 27.6 kJ/mol.
The normal boiling point of n-pentane is 36.1°C.
Calculate the vapour pressure of n-pentane at 13.1°C.

And please explain how to solve?

Answer 1

This is not an awesome question - just one using the Clausius - Clapyeron equation. Go to your text and you will see the equation.

Note that the boiling point is the point at which the pressure is equal to 1 atmosphere - and this is the boiling point temperature which you have above. You also need the Delta H vap which you have.

Watch your units for R (gas constant) and temp which is in Kelvin, not C

It is merely a plug and crank calculation from the above referenced equation.

Since this is addressed in Freshman chemistry for science majors it is something you need to be able to understand.