A gas decreases in pressure from 9.00 atm to 3.00 atm at a constant volume of 3.

Question

A gas decreases in pressure from 9.00 atm to 3.00 atm at a constant volume of 3.00 m3 and then is compressed at constant pressure to a volume of 1.00 m3 before returning to its initial state as shown in the figure. How much work is done in one cycle?

9. A gas decreases in pressure from 9.00 atm to 3.00 atm at a constant volume of 3.00 m3 and then is compressed at constant pressure to a volume of 1.00 m3 before returning to its initial state as shown in the figure. How much work is done in one cycle? P (atm) 9.00 6.00 3.00 1.00 2.00 5.00m V(m3

Explanation / Answer

work done = area of the graph

work = (1/2)*b*h

b = 3 - 1 = 2 m^3

h = 9 - 3 = 6atm = 6*10^5 Pa

work = (1/2)*2*6*10^5 J

work = 6*10^5 J <<<-----------ANSWER

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