Q: A sample of ideal gas is expanded to twice its original volume of 1 m³ in a quasi-static process for which P = αV² with α = 3× 105 Pa/m6 as shown in figure. Work done by the expanding gas is
(a) 8 × 105 J
(b) 7 × 105 J
(c) 6 × 105 J
(d) 3 × 105 J
Ans: (b)