Solid-vapor

Solid-liquid

Liquid-vapor

All (A), (B) and (C)

**Which of the following exemplifies an adiabatic process?****Fundamental principle of refrigeration is based on the __________ law of thermodynamics.****The absolute entropy for all crystalline substances at absolute zero temperature is****What is the ratio of adiabatic compressibility to isothermal compressibility?****Boyle's law for gases states that****Pick out the correct statement.****Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates****What happens in a reversible adiabatic expansion process?****The thermodynamic law, PVy = constant, is not applicable in case of****At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.****Which of the following will increase the volume of a real gas by four times?****Mollier chart is a __________ plot.****In the decomposition of PCl5 represented by, PCl5 PCl3 + Cl2, decrease in the pressure of the system…****Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg…****Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the****Cp - Cv = R is valid for __________ gases.****The temperature at which both liquid and gas phases are identical, is called the __________ point.****The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for****A refrigerator works on the principle of __________ law of thermodynamics.****When pressure is applied on the system, ice ↔ water, then****With increase in compression ratio, the efficiency of the otto engine****During the phase transition, __________ changes.****The internal energy of an ideal gas does not change in a reversible __________ process.****The minimum number of phases that can exist in a system is****Gibbs phase rule finds application, when heat transfer occurs by****Compound having large heat of formation is****For a single component two phase mixture, the number of independent variable properties are****(∂H/∂T)P is the mathematical expression for****Co-efficient of Performance (COP) of a refrigerator is the ratio of the****Fugacity and pressure are numerically equal, when the gas is**