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HomePhysics42. If γ=2.5 and volume is equal to 1/8  times to the initial volume then pressure P’ is equal to (Initial pressure = P)

42. If γ=2.5 and volume is equal to 1/8  times to the initial volume then pressure P’ is equal to (Initial pressure = P)

(a) P‘=P                                (b) P‘=2P

(c) P‘=P ×215/2                   (d) P‘=7P

Answer-c

(10)

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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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