By throttling

By expansion in an engine

At constant pressure

None of these

**An ideal liquid refrigerant should****Kopp's rule is used to calculate the heat capacity of****The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing…****In the reaction, H2 +I2 2HI, addition of an inert gas will****Free energy****A system undergoes a change from a given initial state to a given final state either by an irreversible…****When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and…****The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called…****Linde gas liquefaction process employs cooling****The expression for entropy change, ΔS = n Cp . ln (T2/T1), is valid for the __________ of a substance.****The free energy change for a chemical reaction is given by (where, K = equilibrium constant)****Clausius-Clapeyron Equation gives accurate result, when the****The main feature of Carnot refrigeration cycle is that, it****The energy of activation of exothermic reaction is****The minimum number of phases that can exist in a system is****Pick out the wrong statement.****During Joule-Thomson expansion of gases****The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing…****If the internal energy of an ideal gas decreases by the same amount as the work done by the system,…****For a constant volume process****What is the value of ln y (where y = activity co-efficient) for ideal gases?****Which of the following represents the Virial equation of state?****Entropy of the system decreases, when****Gibbs-Helmholtz equation is****Which of the following will increase the volume of a real gas by four times?****Heat of formation of an element in its standard state is****The point at which all the three (solid, liquid and gas) phases co-exist, is known as the __________…****If two gases have same reduced temperature and reduced pressure, then they will have the same****Free energy changes for two reaction mechanism 'X' and 'Y are respectively - 15 and - 5 units. It implies…****When a system is in equilibrium for all possible processes, the differential or finite change of entropy…**