1.75 moles of an ideal gas, for which initially at 32.0°C and undergoes a two-stage tran...

1.75 moles of an ideal gas, for which initially at 32.0°C and undergoes a two-stage transformation. For each of the stages described in the following list, calculate the final pressure, as well as q, w, ΔU, and ΔH. Also calculate q, w, ΔU, and ΔH for the complete process.

a. The gas is expanded isothermally and reversibly until the volume doubles.

b. Beginning at the end of the first stage, the temperature is raised to 92.0°C at constant volume.