NEET-XII-Physics
26: Laws of Thermodynamics
- #1Should the internal energy of a system necessarily increase if heat is added to it?Ans : Change in internal energy of a system, `` ∆U={C}_{v}∆T``
Here,
Cv = Specific heat at constant volume
`` ∆``T = Change in temperature.
If `` ∆``T = 0, then `` ∆``U = 0, i.e. in isothermal processes, where temperature remains constant, the internal energy doesn't change even on adding heat to the system.
Thus, the internal energy of a system should not necessarily increase if heat is added to it.
Page No 60: