In an ideal gas mixture, fugacity of a species is equal to its___________________?
(A) Vapor pressure
(B) Partial pressure
(C) Chemical potential
(D) None of these
Van Laar equation deals with the activity co-efficients in___________________?
(A) Binary solutions
(B) Ternary solutions
(C) Azeotropic mixture only
(D) None of these
Which of the following is not an intensive property ?
(A) Molar heat capacity
(B) Internal energy
(C) Viscosity
(D) None of these
The equation DU = Tds – PdV is applicable to infinitesimal changes occuring in_________________?
(A) An open system of constant composition
(B) A closed system of constant composition
(C) An open system with changes in composition
(D) A closed system with changes in composition
In the equation, PVn = constant, if the value of n = ± ∞, then it represents a reversible _____________ process?
(A) Adiabatic
(B) Isometric
(C) Isentropic
(D) Isothermal
For an ideal gas, the activity co-efficient is_________________?
(A) Directly proportional to pressure
(B) Inversely proportional to pressure
(C) Unity at all pressures
(D) None of these
A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be _____________ litres?
(A) 448
(B) 224
(C) 22.4
(D) Data insufficient; can’t be computed
Pick out the correct equation relating ‘F’ and ‘A’___________________?
(A) F = A + PV
(B) F = E + A
(C) F = A – TS
(D) F = A + TS
In the decomposition of PCl5 represented by, PCl5 ⇌ PCl3 + Cl2, decrease in the pressure of the system will _____________ the degree of dissociation of PCl5?
(A) Increase
(B) Decrease
(C) Not alter
(D) None of these
The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by____________________?
(A) (R/ΔH) (1/T1 – 1/T2)
(B) (ΔH/R) (1/T1 – 1/T2)
(C) (ΔH/R) (1/T2 – 1/T1)
(D) (1/R) (1/T1 – 1/T2)