Q. The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

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Q. Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.

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Q. In the reaction, H₂ + I₂ ↔ 2HI, addition of an inert gas will

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Q. What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor ?

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Q. In an irreversible process

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Q. What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?

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Q. The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is

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Q. PVʸ = Constant (where, γ = Cᵨ/Cᵥ) is valid for a/an __________ process.

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Q. Claude gas liquefaction process employs cooling

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Q. As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then approaches

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Q. Which of the following is not affected by temperature changes ?

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Q. For an ideal gas, the activity co-efficient is

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Q. Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called __________ solutions.

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Q. Critical compressibility factor for all substances

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Q. What is the degree of freedom for two mis-cible (non-reacting) substances in vapor-liquid equilibrium forming an azeotrope ?

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Q. For a given substance at a specified temperature, activity is __________ to fugacity.

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Q. In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

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Q. For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm³ and that in vapour phase in 391.1 cm³.Fugacity of water (in kPa) at 9000 kPa will be

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Q. The heat capacities for the ideal gas state depend upon the

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Q. Which of the following will increase the volume of a real gas by four times ?

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