Could 25 g of argon gas in a vessel of volume 1.5 dm3 exert a pressure of 2 bar at 30 oC it is behaved as a perfect gas ? (a) What pressure would it exert ? (b) What pressure would it exert if it behaved as Vander Waals gas if a = 1.337 dm6 atm mol-2, b = ? 3.20 * 10-2 dm3 mol-1

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