Question

ΔΤ = 0, ΔΡ=0 at constant temperature and
pressure condition, where AV +0
AT =0,​

Answer 1

Answer:

Since, the ΔU is a function of temperature and volume,

In isothermal process, Temperature is constant so ΔU=0

and in isochoric process, volume is constant so ΔU=0

and in cyclic process, after one complete cycle the system returns to its original state, so ΔU=0