In a Steam Engine, Steam in a Cylinder Returns to Its

question 149

Multiple Choice

In a steam engine, steam in a cylinder returns to its original state after an expansion/compression cycle.In the expansion step, the volume of the steam increases by exactly 15 L at a constant pressure of exactly 10 atm while 7325 J of heat flows in.In the compression step, the volume of the gas decreases by exactly 15 L at a constant pressure of exactly 15 atm.Calculate the heat flow into/out of the steam in the second step.(101.3 J =1 L.atm)

• A)(-270 J)
• B)(-7598 J)
• C)(-14,920 J)
• D)(-30,660 J)
• E)(-45,310 J)

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