Question

What is the vapor pressure of ethanol at 13 C?

Answer 1

Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 C.

Answer 2

I assume you have a table but if not, here is a site that allows one to calculate vapor pressure at the desired T.
http://www.s-ohe.com/Ethanol_cal.html