17) A sample of an ideal gas is expanded 1 m3 to 3 m3 in a reversible process for which P = KV2, with K = 6 bar/m6. Work done by the gas is
(A) 5200 kJ       (B) 15600 kJ       (C) 52 kJ       (D) 5267.6 kJ

 dW= -  p dVWrev = -  6 V2 dV     = -6 V233 -V133      = -6 333 -133   = - 52.02 bar m3  = - 5200 J

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