Krypton is contained in a closed cylinder fitted with a weightless piston at 107 K and 1 bar.

Heat is added under constant pressure until the volume has doubled in size. What is the

change in the molar enthalpy (∆H)?

Assume krypton is an ideal gas. From Appendix B in the text, we can assume the heat capacity

of krypton is independent of temperature and Cp = 2.5R, where R is the molar gas

constant R = 8.314 J/(mol K). For an ideal gas, recall Cy = Cp - R=1.5R.

Report your answer in units of kJ/mol using three decimal places.