A system undergoes a reversible cycle that traces a triangle in the p-V plane
In the first leg of the cycle, the gas contracts at a constant pressure of 100 kPa from 30 L to 22 L; in the second leg, the pressure increases to 150 kPa, with the volume staying constant. In the third leg, the pressure and volume change so that the system follows the straight line that closes the triangle. How much heat is supplied to the system in each cycle? A) 200 J
B) 300 J
C) - 300 J
D) 400 J
E) - 400 J
A
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