Consider an ideal gas having initial pressure and volume p1 , V1 . In terms of p1 , V1 , and y , write down an expression for the variation of p with V during
(a) isothermal expansion,
(b) adiabatic expansion.
(c) Show that the slope dp/dV of the path on a p-V diagram is steeper for adiabatic processes than for isothermal processes, given that y = Cp/Cy >1.