Consider the four-process cycle shown in the P-V diagram in the figure above. Th

Question

Consider the four-process cycle shown in the P-V diagram in the figure above. The graph shows a sequence of four processes being carried out on a sealed system of ideal gas. In this case, P is 50.0 kPa and V is 2.00 liters.

(a) Calculate the work done by the gas in the process taking the system from state 1 to state 2. (J)

(c) Calculate the work done by the gas in the process taking the system from state 1 directly to state 4. (J)

Consider the four-process cycle shown in the P-V diagram in the figure above. The graph shows a sequence of four processes being carried out on a sealed system of ideal gas. In this case, P is 50.0 kPa and V is 2.00 liters. Calculate the work done by the gas in the process taking the system from state 1 to state 2. (J) Calculate the work done by the gas in the process taking the system from state 1 directly to state 4. (J)

Explanation / Answer

a) find W1-2

W1-2 = area under the line 1-2 = P*(2V - V) + (3P -P)*(2V - V)/2 = 2PV =200.0 J

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