Q: An ideal diatomic gas is heated at constant pressure to add 140 J for heat to the gas. Then, choose the correct option(s).
(a) Change in internal energy of gas is 100 J
(b) Work done by the gas is 40 J
(c) Work done by the gas is zero
(d) Change in internal energy of gas is 140 J
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Ans: (a) , (b)