Question

In thermodynamics , how ∆U, ∆H ,and ∆T can be zero for isothermal reversible expansion? Please answer me in detail

Answer 1

for isothermal process where the temperature does not change . dT =0

if there is no change in temperature then there is no change in internal energy dU=0

if the temperature change is zero then the enthalpy changes also zero
dH=Cp × dT