In the given figure, an ideal gas changes its state from state A to state C by two paths ABC and AC. Find the path along which work done is the least.

In the given figure, an ideal gas changes its state from state A to st

1.	In the given figure, an ideal gas changes its state from state A to state C by two paths ABC and AC. Find the path along which work done is the least.
Answer» Solution :As work done `W= int PdV`= area under P-V curve, so `W_(ABC)=W_(AB) +W_(BC )i.e.,W_(ABC) = 0+15 XX 4 =60andW_(AC )=1/2[5+15]xx (6-2) =40 J` So work done along AC is LEAST