Q: Pressure P, volume V and temperature T of a certain material are related by P = αT^2/ V, where α is constant. Work done by the material when temperature changes from T0 to 2 T0 and pressure remains constant is
(a) 3 α T02
(b) 5 α T02
(c) 3/2 α T02
(d) 7 α T02
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Ans: (a)