Explain the following :(A) Rate of the reaction in terms of the concen

1.	Explain the following :(A) Rate of the reaction in terms of the concentration of the reactants. (B) Rate of reaction in terms of the concentration of the products.
Answer» (A) Rate of the reaction in terms of the concentration of the reactants : If c₁ and c₂ are the concentrations of the reactant A at time t₁ and t₂ respectively, then, the change in concentration, Δc = c₂ – c₁ Since c₂ < c₁, The term Δc is negative often written as – Δc. The time interval is, Δt – t₂ – t₁ If Δ [A] is the change in concentration of A, then A[A] = C₂ – C₁ ∴ Rate of the reaction = A = \(\frac{-ΔA}{Δt}\) ∴ Rate of the reaction = \(\frac{-Δc}{Δt}\) (B) Rate of the reaction in terms of the concentration of the products : If x₁ and x₂ are the concentrations of the product B at time t₁ and t₂ respectively, Then the change in concentration, Δx = x₂ – x₁. ∴ x₂ > x₁, The term Δx is positive. The time interval is, Δt = t₂ – t₁ If ΔB is the change in concentration of product B, Then, Δ[B] = x₂ – x₁ = Δx ∴ Rate of formation of B = \(+\frac{Δ[B]}{Δt}\) ∴ Rate of the reaction = \(\frac{Δx}{Δt}\)

Explain the following :(A) Rate of the reaction in terms of the concentration of the reactants. (B) Rate of reaction in terms of the concentration of the products.

Answer»

(A) Rate of the reaction in terms of the concentration of the reactants :

If c₁ and c₂ are the concentrations of the reactant A at time t₁ and t₂ respectively, then, the change in concentration,

Δc = c₂ – c₁

Since c₂ < c₁,

The term Δc is negative often written as – Δc.

The time interval is,

Δt – t₂ – t₁

If Δ [A] is the change in concentration of A,

then A[A] = C₂ – C₁

∴ Rate of the reaction = A = \(\frac{-ΔA}{Δt}\)

∴ Rate of the reaction = \(\frac{-Δc}{Δt}\)

(B) Rate of the reaction in terms of the concentration of the products :

If x₁ and x₂ are the concentrations of the product B at time t₁ and t₂ respectively,

Then the change in concentration,

Δx = x₂ – x₁.

∴ x₂ > x₁,

The term Δx is positive.

The time interval is,

Δt = t₂ – t₁

If ΔB is the change in concentration of product B,

Then,

Δ[B] = x₂ – x₁ = Δx

∴ Rate of formation of B = \(+\frac{Δ[B]}{Δt}\)

∴ Rate of the reaction = \(\frac{Δx}{Δt}\)