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HomePhysics28. In an adiabatic expansion of a gas initial and final temperatures

28. In an adiabatic expansion of a gas initial and final temperatures

are T1 and T2 respectively, then the change in internal energy of the gas is

(a)    (R/ϒ-1) (T2-T1)                 (b) (R/ϒ-1) (T1-T2)

(c)     R(T1-T2)                            (d)  Zero

Ans. a

(14)

5/5 - (1 vote)

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12. An ideal gas is taken through the cycle A→ B → C → A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C → A is

(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (126)

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