(III) When a gas is taken from a to c along the curved pathin Fig. 15–24, the work done by the gas is W = -35 J andthe heat added to the gas is Q = -175 J. Along path abc,the work done by the gas is W = -56 J. (That is, 56 J ofwork is done on the gas.) (a) What is Q for path abc?(b) If P = P,, whatis W for path cda?(c) What is Q forpath cda? (d) Whatis Ua - U.? (e) IfUa - U. = 42 J, whatis Q for path da?PbP.FIGURE 15-24Problem 13.V

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University Physics Volume 2

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Chapter3: The First Law Of Thermodynamics

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Problem 39P: In a quasi-static isobaric expansion, 500 J of work are done by the gas. The gas pressure is 0.80...

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