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53.One mole of an ideal gas with γ=1.4 , is adiabatically compressed so that its temperature rises from 27°C to 35°C. The change in the internal energy of the gas is  (R=8.3 J/mol K)

(a)  –166 J                                        (b)  166 J

(c)   –168 J                                       (d)  168 J

Answer-b

(6)

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