50. We consider a thermodynamic system. If ΔU represents the increase in its internal energy and W the work done by the system, which of the following statements is true
(a) ΔU=-W in an adiabatic process
(b) ΔU=W in an isothermal process
(c) ΔU=-W in an isothermal process
(d) ΔU=W in an adiabatic process
Answer-a
(3)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)