&nbsp;When a gas is taken from a to c along the curved path in the figure (Figure 1) , the work done by the gas is W = -40 J and the heat added to the gas is Q = -140 J . Along path abc, the work done by the gas is W = -50 J . (That is, 50 J of work is done on the gas.)&nbsp;I keep on missing Part D. The answer for part D is not -150,150,-155,108,105( was close but it said not quite check calculations)&nbsp;Part A&nbsp;What is Q for path abc?&nbsp;Express your answer to two significant figures and include the appropriate units.&nbsp;Part B&nbsp;f Pc=1/2Pb, what is W for path cda?&nbsp;Express your answer to two significant figures and include the appropriate units.&nbsp;Part C&nbsp;What is Q for path cda?&nbsp;Express your answer to two significant figures and include the appropriate units.&nbsp;Part D&nbsp;What is Ua?Uc?&nbsp;Express your answer to two significant figures and include the appropriate units.&nbsp;Part E&nbsp;If Ud?Uc=42J, what is Q for path da?&nbsp;Express your answer to two significant figures and include the appropriate units.

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&amp;nbsp;When a gas is taken from a to c along the curved path in the figure (Figure 1) , the work done by the gas is W = -40 J and the heat added to the gas is Q = -140 J . Along path abc, the work done by the gas is W = -50 J . (That is, 50 J of work is done on the gas.)&amp;nbsp;I keep on missing Part D. The answer for part D is not -150,150,-155,108,105( was close but it said not quite check calculations)&amp;nbsp;Part A&amp;nbsp;What is Q for path abc?&amp;nbsp;Express your answer to two significant figures and include the appropriate units.&amp;nbsp;Part B&amp;nbsp;f Pc=1/2Pb, what is W for path cda?&amp;nbsp;Express your answer to two significant figures and include the appropriate units.&amp;nbsp;Part C&amp;nbsp;What is Q for path cda?&amp;nbsp;Express your answer to two significant figures and include the appropriate units.&amp;nbsp;Part D&amp;nbsp;What is Ua?Uc?&amp;nbsp;Express your answer to two significant figures and include the appropriate units.&amp;nbsp;Part E&amp;nbsp;If Ud?Uc=42J, what is Q for path da?&amp;nbsp;Express your answer to two significant figures and include the appropriate units.

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Part D:  For the variation of the internal energy in the path cda we have that  △Uca=△Ucd+△Uda  △Uca=(Qcd−Wcd)+(Qda−Wda)  the path da is a constant volume, so the work in this path is zero  △Uca=(Qcd−Wcd)+(Qda−0)  △Uca=Qcd+Qda−Wcd  △Uca=Qca−Wcd  Here we have, form the parts B and C, the Qca=130J and the Wcd=25 J, so  △Uca=105J  An Answer that you already said is incorrect. But there is a &quot;trick&quot;, the significant figures. You need an answer with two significant figures but that has three. So, rounding, the answer is  △Uca=110J  Part E:  Since the path dc is at constant volume  △Ucd=Qcd  And like we have Qcda  Qcda=Qcd+Qda  Qda=Qcda−Qcd  Qda=130J−42J  Qda=88J

When a gas is taken from a to c along the curved path in the figure (Figure 1) , the work done by the gas is W = -40 J and the heat added to the gas i

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