A gas is taken through the cycle A B C A , as shown in figure. What is the net work done by the gas?

Step-by-step solution

Net work done = area enclosed in P-V diagram. Cycle A B C A is clockwise work done is positive. The enclosed area is a right-angled triangle. Base = V_C - V_A = (7 - 3) 10⁻³ = 4 10⁻³ m ^3 Height = P_B - P_C = (6 - 2) 10^5 = 4 10^5 Pa W_ net = 1 2 4 10⁻³ 4 10^5 = 1 2 16 10^2 = 800 J