Question: Chloroform, CHCl3, a volatile liquid was once used an anesthetic but has ben replaced by safer compounds. chloroform has a normal boiling point at 61.7 degree C and has a heat of vaporization of 31.4 kj/mol. compute its vapor pressure at 36.2 degree C?

Is the equation ln(p)= -Delta Hvap/RT + C. So than you plug in the numbers and get -31.4 kj/mole/ 8.31* (61.7+273.15) + 36.2 degree C. Is this how you solve for this problem. Did i plug in correctly?

3 answers

Close.
I would use the full form of the Clausius-Clapeyron equation, i.e.,
ln(p2/p1) = etc.
I got 89.1 mmHg.
Chloroform, CHCl3 a volatile liquid was once used as an anesthetic
but has been replaced by safer compounds. It boils at 61.7 C, and
has a heat of vaporization of 31.4 kJ/mol. What is its vapour pressure
at 25