8. A 9.0-L ideal gas with y=1.4 is initially at 320 K and 300 kPa. The gas is compressed adiabatically until its volume becomes 2.0 L, then cooled at constant pressure back to 320 K, and finally allowed to expand isothermally to its original state, as shown in the figure. What is the net work done on the gas during one cycle?
(A) 8988 J
(B) 9028 J
(C) 9146 J
(D) 9257 J
(E) None of the above.
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統計: 尚無統計資料
統計: 尚無統計資料