Benzene was once a widely used solvent. A sample of benzene vapor in a flask of constant volume exerts a pressure of 325 mmHg at 80 degrees Celsius. The flask is slowly cooled.

a.) Assuming no condensation, use the ideal gas law to calculate the vapor pressure at 48 degrees Celsius and at 62 degrees Celsius.

b.) Compare your answers in a.) to the equilibrium vapor pressures of benzene at 259 mmHg at 48 degrees Celsius and 398 mmHg at 62 degrees Celsius.

c.) On the basis of your answers in a.) and b.), predict the pressure exerted at 50 degrees Celsius and 60 degrees Celsius.