A. Kp2/Kp1 = – (ΔH/R) (1/T2 – 1/T1)
B. Kp2/Kp1 = (ΔH/R) (1/T2 – 1/T1)
C. Kp2/Kp1 = ΔH (1/T2 – 1/T1)
D. Kp2/Kp1 = – (1/R) (1/T2 – 1/T1)
Related Mcqs:
- Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is________________?
A. 0
B. 1
C. ∞
D. None of these - Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be___________________?
A. Same
B. Doubled
C. Halved
D. One fourth of its original value - At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by (where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) ?
A. μ° + RT ln f
B. μ°+ R ln f
C. μ° + T ln f
D. μ° + R/T ln f - The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 – T2)/T1. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T1 and T2 is given by__________________?
A. T1/(T1-T2)
B. T2/(T1-T2)
C. T1/T2
D. T2/R1 - The free energy change for a chemical reaction is given by (where, K = equilibrium constant)________________?
A. RT ln K
B. -RT ln K
C. -R ln K
D. T ln K - In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than is Kc ?
A. 2HI ⇌ H2 + I2
B. N2O4 ⇌ 2NO2
C. 2SO2 + O2 ⇌ 2SO3
D. None of these - ____________ explains the equilibrium constant for any chemical reaction?
A. Henry’s law
B. Law of mass action
C. Hess’s law
D. None of these - The unit of equilibrium constant of a chemical reaction is the same as that of__________________?
A. Molar concentration
B. Temperature
C. Internal energy
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) - If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase are known, then the latent heat of fusion can be calculated by the _________________?
A. Maxwell’s equation
B. Clausius-Clapeyron Equation
C. Van Laar equation
D. Nernst Heat Theorem