Volume of the liquid phase is negligible compared to that of vapour phase

Vapour phase behaves as an ideal gas

Heat of vaporisation is independent of temperature

All (A), (B) & (C)

**No work is done by the system, when a reaction occurs at constant****Melting of wax is accompanied with __________ in entropy.****PVy = constant, holds good for an isentropic process, which is****Gibbs-Duhem equation****The equation relating E, P, V and T which is true for all substances under all conditions is given by…****Internal energy change of a system over one complete cycle in a cyclic process is****Charles' law for gases states that****Which one is true for a throttling process?****(1/V) (∂V/∂T)P is the mathematical expression****In a homogeneous solution, the activity coefficient of a component depends upon the****At the critical point of a substance****An irreversible process****Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the****The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.****Pick out the wrong statement.****Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the…****What is the value of ln y (where y = activity co-efficient) for ideal gases?****The necessary and sufficient condition for equilibrium between two phases is****One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought…****Internal energy of an element at 1 atm and 25° C is __________ kcal/kg.mole.****The energy of activation of exothermic reaction is****Gibbs free energy (G) is represented by, G = H - TS, whereas Helmholtz free energy, (A) is given by,…****Heat of reaction at constant volume is identified with __________ change.****For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions,…****All gases except __________ shows a cooling effect during throttling process at atmospheric temperature…****The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial…****During the phase transition, __________ changes.****In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than…****The acentric factor of a materical, 'ω', is defined as ω = -log10(Prsat)Tr-1 = 0.7, where,…****Domestic refrigerator usually works on the __________ refrigeration cycle.**