REPRESENTED by PVn = Cn = 0 ⇒ P = C ⇒ CONSTANT Pressure Process (Isobaric Process)n = 1 ⇒ PV = C ⇒ Constant TEMPERATURE Process (ISOTHERMAL process)n = γ ⇒ PVγ = C ⇒ Adiabatic Processn = ∞ ⇒ V = C ⇒ Constant Volume Process (Isochoric process)As the area under the PV diagram represents work done which is maximum for isobaric (P = c) process.