13. A system performs work
Δw when an amount of heat is ΔQ added to the system, the corresponding change in the internal energy is ΔU . A unique function of the initial and final states (irrespective of the mode of change) is
(a) ΔQ (b) Δw
(c) ΔU and ΔQ (d) ΔU
Ans. d
(10)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)