Given the Data Below, Determine the Molar Enthalpy Change of Vaporization

Multiple Choice

Given the data below, determine the molar enthalpy change of vaporization of liquid Rb. Rb, P1 = 1.00 mmHg, t1 = 297°C, P2 = 400 mmHg, t2 = 620°C

A) 5.49 kJ/mol
B) 28.4 kJ/mol
C) 78.5 kJ/mol
D) 12.8 kJ/mol
E) 4.62 kJ/mol