One mole of an ideal gas, initially at 30(C and 1 bar, is changed to I30(C and 10 bar by three different mechanically reversible processes:
• The gas is first heated at constant volume until its temperature is 130(C; then it is compressed isothermally until its pressure is 10 bar.
• The gas is first heated at constant pressure until its temperature is 130 C; then it is compressed isothermally to 10 bar.
• The gas is first compressed isothermally to 10 bar, then it is heated at constant pressure to 130(C.
Calculate Q, W,(U, and AH in each case, Take CP = (7/2)R and CV = (5/2)R. Alternatively, take CP = (5/2)R and CV = (3/2)R.