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

question 71

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 12 L at a constant pressure of exactly 10 atm while 6228 J of heat flows in.In the compression step,the volume of the gas decreases by exactly 12 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)+12,310 J
• B)+5928 kJ
• C)-18,230 J
• D)-5928 J
• E)- 12,310 J

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