Logarithms of readings of pressure and volume from ideal gas were plotted on a graph as shown . By measuring the gradient , it can be shown that the gas may be

Question

(a) Monoatomic and undergoing an adiabatic change\[\] (b) Monoatomic and undergoing isothermal change \[\] (c) Diatomic and undergoing an adiabatic change \[\] (d) Triatomic and undergoing isothermal change