5.2

6.2

0.168

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**The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume…****Entropy of a substance remains constant during a/an __________ change.****Pick out the wrong statement.****A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially…****A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will…****Specific/molar Gibbs free energy for a pure substance does not change during****During adiabatic expansion of gas****To obtain integrated form of Clausius-Clapeyron equation, ln (P2/P1) = (ΔHV/R) (1/T1 - 1/T2) from…****The point at which all the three (solid, liquid and gas) phases co-exist, is known as the __________…****The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300…****An irreversible process****In a homogeneous solution, the activity coefficient of a component depends upon the****The change in Gibbs free energy for vaporisation of a pure substance is****Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called…****The total change in the enthalpy of a system is independent of the****Pick out the undesirable property for a good refrigerant.****At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous…****A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown…****Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P,…****Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of…****The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant…****For a single component two phase mixture, the number of independent variable properties are****Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in…****At triple point (for one component system), vapour pressure of solid as compared to that of liquid will…****Which of the following is true for Virial equation of state?****Cv is given by****Which law of the thermodynamics provides basis for measuring the thermodynamic property?****Which of the following is not a reversible process?****Enthalpy 'H' is defined as****The first law of thermodynamics is a restatement of the law of conservation of**