An idealgas expands isothermally from 10^-3 m^3 to 10^-2 m^3 at 300kagainst a constant pressure of 10^5Nm^-2. Thework donr on the gas is
(a) +270kj (b) -900j
(c) +900kj (d) -900kj
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Option b
-900j
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