What are the units of Equilibrium constant?
admin The Equilibrium constant expression involves the concentrations or partial pressures of the reactants and products. The units of Equilibrium constant K will depend on the number of moles of reactants…
April 2025
At 700 K, the equilibrium constant Kp, for the reaction 2 SO3 (g) ⇌ 2 SO2 (g) + O2 Is 1.8 X 10-3 kPa. What is the numerical value in moles per liter of Kc for the reaction at the same temperature?
Relation between Kp and Kc is given as: Kp = Kc (RT) ∆n Kc = Kp / (RT) ∆n T = 700 K R = 8.314 J mol -1 K-1…
The degree of dissociation of PCl5 at a certain temperature and under atmospheric pressure is 0.2. Calculate the pressure at which it will be half dissociated at the same temperature.
PCl5 dissociates as: PCl5 ⇌ PCl3 Cl2 If α is the degree of dissociation at certain temperature under atmospheric pressure, then Initial concentration: PCl5 = 1 PCl3 = 0 Cl2…
Derive an expression for the degree of dissociation, α, in terms of Kp
For the homogeneous gaseous reaction 2 AB2 (g) ⇌ 2 AB (g) + B2 (g) Derive an expression for the degree of dissociation, α, in terms of Kp and total…
What is the difference between rate of reaction and reaction rate constant?
Difference between rate of reaction and reaction rate constant are as follows: RATE OF REACTION REACTION RATE CONSTANT Rate of reaction is the change in concentration of a reactant or…
Define Molecularity of a reaction. Discuss the molecularity of simple reactions.
According to the collision theory in order that a reaction may take place, the molecules must come close together and collide with one another. Hence, The number of atoms, ions…
Discuss the molecularity of complex reactions.
In case of chemical reactions i.e. reactions involving a number of atoms, ions, molecules of the reactants in the balanced equation, the chances for all the atoms, ions or molecules…
Explain the Mechanism of a Reaction?
A series of step reactions or elementary processes proposed to account for the overall reaction is called the mechanism of the reaction. The writing of step reactions is usually based…
Distinguish between order of a reaction and molecularity of a reaction?
The main difference between the order of a reaction and molecularity of a reaction are given below: ORDER OF A REACTION MOLECULARITY OF A REACTION It is sum of the…
What is the difference between photochemical reactions and thermochemical reactions?
Difference between photochemical reactions and thermochemical reactions are discussed below: THERMOCHEMICAL REACTIONS PHOTOCHEMICAL REACTIONS These reactions involve absorption or evolution of heat. These reactions involve absorption of light. They can…