1. Suppose that 405.1 J of heat energy is required to completely vaporize 3.8 g of a pure liquid. If the molar mass of the liquid is 44.43 g/mol, what is the molar enthalpy of vaporization of the liquid? Enter the correct numeric value to 1.0% precision. Express scientific notation like 4.29E-15

2. The equilibrium vapor pressure of liquid hydrogen at 16 K is 0.213 bar. The standard (1 bar) boiling point is 20.3 K. Use the Clausius-Clapeyron equation to estimate the enthalpy of vaporization of hydrogen. Enter the correct numeric value to 1.0% precision. Express scientific notation like 4.29E-15