Like internal energy and enthalpy, the absolute value of standard entropy for elementary substances is zero

Melting of ice involves increase in enthalpy and a decrease in randomness

The internal energy of an ideal gas depends only on its pressure

Maximum work is done under reversible conditions

**On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal…****Which of the following units is not present in both the vapor compression refrigeration system and absorption…****The activity of an ideal gas is numerically __________ its pressure.****Gibbs-Duhem equation****At absolute zero temperature, the __________ of the gas is zero.****Which of the following is Virial equation of state?****Number of degrees of freedom for a three phase system in equilibrium comprising of three nonreacting…****For multi-component multiple phases to be in equilibrium at the same pressure and temperature, the __________…****Third law of thermodynamics is concerned with the****In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process.****When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the…****Which of the following is not a common refrigerant?****As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches****In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured…****Boiling of liquid is accompanied with increase in the****High __________ is an undesirable property for a good refrigerant.****Which one is true for a throttling process?****Standard temperature and pressure (S.T.P.) is****The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT)…****Cv is given by****Fugacity co-efficient of a substance is the ratio of its fugacity to****The temperature at the eutectic point of the system is the __________ temperature that can be attained…****All gases except __________ shows a cooling effect during throttling process at atmospheric temperature…****In the equation, PVn = constant, if the value of n = ± ∞, then it represents a reversible…****Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.****Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal…****For spontaneous changes in an isolated system (S = entropy)****Co-efficient of Performance (COP) of a refrigerator is the ratio of the****The intensive properties are****Isobaric process means a constant process.**