Question 1 A liquid at 15.0C exhibits a vapor pressure of 0.735atm. When heated to 30.0C, the vapor pressure is 0.950atm. What is the heat of vaporization (in kJmol1 to two decimal places) of the liquid? Question 2 A liquid at 10.0C exhibits a vapor pressure of 0.535atm. When heated to 50.0C, the vapor pressure is 1.052atm. What is the enthalpy of vaporization (in kJmol1 to two decimal places) of the liquid? Question 3 A liquid at 1.00C exhibits a vapor pressure of 1.115atm. The liquid is heated resulting in a vapor pressure of 1.447atm. What is this temperature (in C to the nearest whole number) if Hvap=2.656kJmol1 ? Question 4 A liquid at 20.0C exhibits a vapor pressure of 0.555atm. The liquid is heated to 60.0C. What is the new vapor pressure (in atm to three decimal places) if Hvap=25.595kJ mol1