The reaction will be given as: PCl5 ⇌ PCl3 Cl2 Initial moles: PCl5 = 0.10 PCl3 = 0 Cl2 = 0 Equivalent moles: PCl5 = 0.10 - α PCl3 = α Cl2 = α Total number of moles = 0.10 – α + α + α = 0.10 + α Now, we know that pV = ...

The change of pressure can be observed on the reactions which involves gaseous substances. According to Le-Chateliers’s principle, increase of pressure on a system at equilibrium will shift the equilibrium in the direction in which pressure is reduce. By increase in pressure, the volume occupied by ...

The two French chemists, Le-Chateliers and Braun in 1884 made a certain generalizations to explain the effect of changes of system in equilibrium due to concentration, temperature or pressure. The generalization is known as Le-Chateliers’s principle. When a system is subjected to a change in ...

The given equation is: 2 N2 (g) + O2 (g) ⇌ 2 N2O (g) Therefore the equilibrium constant Kc, will be given as: Kc = [N2O] 2 / [N2] 2 [O2] Initial molar concentrations are: [N2] = 0.482 mol / 10.0 L = 0.0482 mol L-1 [O2] = 0.933 mol ...

Reaction will be given as: H2 (g) + I2 (g) = 2 HI (g) Therefore, the equilibrium constant K will be given as: K = [HI] 2 / [H2] [I2] The molar concentrations of the species at equilibrium are: [H2] = 0.4 / 5 = 0.08 mol L-1 [I2] = 0.4 ...

The important characteristics of equilibrium constant are discussed below: 1. The equilibrium constant has a definite value for every reaction at a particular temperature. 2. The value of equilibrium constant is independent of the original concentration of reactants. 3. The value of equilibrium constant tells the extent to which a reaction ...

Applications of the equilibrium constant 1. The magnitude of the equilibrium constant : The magnitude of the equilibrium constant K means the extent to which a reaction can proceed i.e. measuring the completion of the reversible reaction. If the value of K is larger, then the equilibrium concentration ...

There are two types of chemical equilibria: 1. Homogeneous equilibrium 2. Heterogeneous equilibrium 1. Homogeneous equilibrium: The equilibrium reactions in which all the reactants and the products are in the same phase are known as homogeneous equilibrium reactions. These are divided into two categories: (a) The number of product molecules is equal ...