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HomePhysics42. If heat given to a system is 6 kcal and work done is 6 kJ. Then change in internal energy is

42. If heat given to a system is 6 kcal and work done is 6 kJ. Then change in internal energy is

(a)   19.1 kJ                                (b)  12.5 kJ

(c)   25 kJ                                   (d) Zero

Ans. a

(10)

5/5 - (2 votes)

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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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