Figure below shows two paths that may be taken by a gas to go from a state A to a state C.

In process AB, 400 J of heat is added to the system and in process BC, 100 J of heat is added to the system. The heat absorbed by the system in the process AC will be:

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Figure below shows two paths that may be taken by a gas to go from a state A to a state C.

In process AB, 400 J of heat is added to the system and in process BC, 100 J of heat is added to the system. The heat absorbed by the system in the process AC will be:

Quantrex Academy · Accepted Answer

Correct answer: C. 460 J

In cyclic process ABCA, Δ U _ cyclic = 0 Q _ cyclic = W Q _ AB + Q _ BC + Q _ CA = Closed loop area 400 + 100 + Q _ CA = (1)/(2) × 2 × 10 ^ - 3 × 4 × 10 ^ 4 500 - Q _ AC = 40 Q _ AC = 460J

Figure below shows two paths that may be taken by a gas to go from...

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