An ideal gas of mass m in a state A goes to another state B via three different processes as shown in figure. If Q1, Q2 and Q3 denote the heat absorbed by the gas along the three paths, then -
(1) Q1 < Q2 < Q3
(2) Q1 < Q2 = Q3
(3) Q1 = Q2 > Q3
(4) Q1 > Q2 > Q3
Related Videos :-
(1) Initial and final states are same in all the process.
Hence Δ U = 0; in each case.
ΔQ = ΔW = Area enclosed by curve with volume axis.
∵ (Area)1 < (Area)2 < (Area)1 ⇒ Q1 < Q2 < Q3