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HomePhysics18. Entropy of a thermodynamic system does not change when this system is used for

18. Entropy of a thermodynamic system does not change when this system is used for

(a)  Conduction of heat from a hot reservoir to a cold reservoir

(b)  Conversion of heat into work isobarically

(c)   Conversion of heat into internal energy isochorically

(d)   Conversion of work into heat isochorically

Ans. d

(13)

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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