A single component system of n moles undergoes a phase transition from liquid to gas. Using the Clapeyron equation, show that the vapor pressure is given by P=Pâ‚€exp [l/R(1/Tâ‚€-1/T)] ,where Pâ‚€ and Tâ‚€ are the pressure and temperature respectively of a reference point on the vapor-pressure curve, R is the gas constant, and l is the latent heat per mole of the gas.
Which formula represents the correct expression for the Clapeyron equation?
a) P=Pâ‚€exp[l/R(1/Tâ‚€-1/T)]
b) P=Pâ‚€exp[R/l(Tâ‚€T-1)]
c) P=Pâ‚€exp[R/l(1/Tâ‚€-1/T)]
d)P=Pâ‚€exp [l/R(Tâ‚€/T-1)]