An Ideal Gas Undergoes the Process A→b→c→a Shown in the PV

question 49

Multiple Choice

An ideal gas undergoes the process a→b→c→a shown in the pV diagram. The heat gained by the gas in process a→b is 546 J, while in process $b \rightarrow \mathrm { c }$ the gas loses 62.0 J of heat. In process a→b the gas performs $310 \mathrm {~J}$ of work, while in process c→a 223 J of work is done on the gas. How much heat is gained by the gas in process c→a?

• A) -397 J
• B) -62 J
• C) 223 J
• D) 18 J
• E) -236 J

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