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

View solution

Q. In an irreversible process

View solution

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 ?

View solution

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

View solution

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

View solution

Q. Claude gas liquefaction process employs cooling

View solution

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

View solution

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

View solution

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

View solution

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.

View solution

Q. Critical compressibility factor for all substances

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Pick out the wrong statement.

View solution

Q. The equation, PV = nRT, is best obeyed by gases at

View solution

Q. Internal energy of an element at 1 atm and 25° C is __________ kcal/kg.mole.

View solution