A gas can be taken from A to B via two different processes ACB and ADB . When path ACB is used 60 J of heat flows into the system and 30 J of work is done by the system. If the path ADB is used then work done by the system is 10 J , the hea

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A gas can be taken from A to B via two different processes ACB and ADB . When path ACB is used 60 J of heat flows into the system and 30 J of work is done by the system. If the path ADB is used then work done by the system is 10 J , the heat flows into the system in the path ADB is:

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Correct answer: C. 40 J

For path ACB , ΔQ = ΔU + ΔW 60 = ΔU + 30 ⇒ ΔU = 30 J For path ADB ΔQ = ΔU + ΔW As initial and find points are the same, change in internal energy is same in both the cases ΔQ = 30 + 10 = 40 J

A gas can be taken from A to B via two different processes ACB and ADB . When path ACB is used 60 J of heat flows into the system and 30 J of work is done by the system. If the path ADB is used then work done by the system is 10 J , the heat flows into the system in the path ADB is:

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