Question: When a system is taken from state A to state B along the path A C B, 180 kJ of heat flows into

When a system is taken from state A to state B along the path A – C – B, 180 kJ of heat flows into the system and does 130 kJ of work (see figure). How much heat will flow into the system along the path A – D – B if the work done by it along the path is 40 kJ ?

C B A D

(a) 40 kJ

(b) 60 kJ

(c) 90 kJ

(d) 135 kJ

C B A D

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