Average rate of reaction 2 SO2 (g) + O2 (g) ⎯⎯→ 2 SO3 (g) is written as

Question

Average rate of reaction 2 SO2 (g) + O2 (g) ⎯⎯→ 2 SO3 (g) is written as (A) (Δ[SO2]/Δ t) (B) -(Δ[O2]/Δ t) (C) (1/2)(Δ[SO2]/Δ t) (D) (Δ[SO3]/Δ t)

Tardigrade Admin · Accepted Answer

Average rate of reaction is defined as the speed with which the reactants are converted into products.

For reaction,

2 S O_{2} (g) + O_{2} (g) ⟶ 2 S O_{3} (g)

- \frac{1}{2} \frac{Δ [ S O _{2} ]}{Δ t} = \frac{- Δ [ O _{2} ]}{Δ t}

= + \frac{1}{2} \frac{Δ [ S O _{3} ]}{Δ t}

So, average rate of reaction is written as

- \frac{Δ [ O _{2} ]}{Δ t} .

Q. Average rate of reaction $2 S O_{2} (g) + O_{2} (g) ⎯⎯ \to 2 S O_{3} (g)$ is written as