Half mole of an ideal monoatomic gas is heated at constant pressure of 1 atm from 20°C to 90°C. Work done by has is close to: (Gas constant R = 8.31 J/mol-K)
(A) 581 J (B) 291 J
(C) 146 J (D) 73 J
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Explanation:
291 J work equal to nRT
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