The equilibria relations in a multi-component and multiphase system cannot be calculated with the help of the_______________?
(A) Phase rule
(B) Experimental data
(C) Empirical equations
(D) Theoretical equations
Solutions which distil without change in composition are called________________?
(A) Ideal
(B) Saturated
(C) Supersaturated
(D) Azeotropic
In osmosis through a semi-permeable membrane, diffusion of the___________________?
(A) Solvent is from low concentration to high concentration region
(B) Solvent is from high concentration to low concentration region
(C) Solute takes place
(D) None of these
Increasing the temperature of an aqueous solution will cause decrease in its________________?
(A) Molality
(B) Mole fraction
(C) Weight percent
(D) Molarity
A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.°C and, Cv = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is__________________?
(A) 13728 J
(B) 19206 J
(C) 4576 J
(D) 12712 J
Enthalpy of formation of NH3 is – 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH3 → N2 + 3H2, is equal to _____________ kJ/kg. mole?
(A) 46
(B) 92
(C) -23
(D) -92
Pick out the wrong unit conversion of mass transfer co-efficient?
(A) 1 lb/hr.ft3.atm. = 4.8182 kg/hr.m2.bar
(B) 1 kg/hr.m2.atm= 0.98687 kg/hr. m .bar
(C) 1 lb/hr.ft2 = 4.8823 kg/hr.m2
(D) 1 kg/hr.m2 = 4.8823 lb/hr.ft2
Heat of solution in a system in which both solute and solvent are liquids is termed as_________________?
(A) Heat of solvation
(B) Heat of hydration
(C) Standard integral heat of solution
(D) Heat of mixing