$2$b Say True or False. Clarify your answer in one or two sentences.

i$)$ At a given temperature and pressure, Gibbs free energy increases or remains unaltered for the spontaneous process.

ii$)$ Duhem's theorem helps in establishing the extensive state of the system.

iii$)$ Vapour pressure of an ideal solution can be determined by knowing the concentration and temperature of the system.

iv$)$ For an exothermic reaction, the increase in temperature results in decrease of $K.$

v$)$ The number of degrees of freedom for an azeotropic mixture of ethanol and water in vapour$-$liquid equilibrium is $2$