?One mole of an ideal gas, initially at 30°C and 1 bar, is changed to 130°C and 10 bar

Chapter 3, Problem 3.32

(choose chapter or problem)

One mole of an ideal gas, initially at 30°C and 1 bar, is changed to 130°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, ΔU, and ΔH in each case. Take \(C_{P} = (7/2)R\) and \(C_{V} = (5/2)R\). Alternatively, take \(C_{P} = (5/2)R\) and \(C_{V} = (3/2)R\).

Text Transcription:

C_P = (7/2)R

C_V = (5/2)R

C_P = (5/2)R

C_V = (3/2)R