Question

What is isobaric and it's derivation?

Answer 1

Isobaric is pressure constant condition.

Please say which derivation you want.

Thanks.

Answer 2

bar is the unit for pressure. Isobaric is a process where pressure remains constant.

PV=NRT
here pressure P is constant. Volume V and Temperatue T varies.
P(V+dv)=NR(T+dt)