Contact process is used in the formation of sulphur trioxide, 2 SO 2(g)+ O 2(g) leftharpoons 2 SO 3(g) The rate of reaction can be expressed as (-Δ[ O 2]/Δ t)=2.5 × 10-4 mol L -1 s -1. Then rate of disappearance of [ SO 2] will be

Question

Contact process is used in the formation of sulphur trioxide, 2 SO 2(g)+ O 2(g) leftharpoons 2 SO 3(g) The rate of reaction can be expressed as (-Δ[ O 2]/Δ t)=2.5 × 10-4 mol L -1 s -1. Then rate of disappearance of [ SO 2] will be (A) 50.0 × 10-5 mol L -1 s -1 (B) 3.75 × 10-4 mol L -1 s -1 (C) 2.5 × 10-4 mol L -1 s -1 (D) 4.12 × 10-4 mol L -1 s -1

Tardigrade Admin · Accepted Answer

(-Δ[ SO 2]/Δ t)=2(-(Δ[ O 2]/Δ t)) ∴ (-Δ[ SO 2]/Δ t)=2 × 2.5 × 10-4 mol L -1 s -1 =5.0 × 10-4 mol L -1 s -1 =50.0 × 10-5 mol L -1 s -1.

Q. Contact process is used in the formation of sulphur trioxide,
$2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g)$
The rate of reaction can be expressed as $\frac{- Δ [ O _{2} ]}{Δ t} = 2.5 \times 1 0^{- 4} m o l L^{- 1} s^{- 1}$ . Then rate of disappearance of $[S O_{2}]$ will be

$50.0 \times 1 0^{- 5} m o l L^{- 1} s^{- 1}$

$3.75 \times 1 0^{- 4} m o l L^{- 1} s^{- 1}$

$2.5 \times 1 0^{- 4} m o l L^{- 1} s^{- 1}$

$4.12 \times 1 0^{- 4} m o l L^{- 1} s^{- 1}$

$\frac{- Δ [ S O _{2} ]}{Δ t} = 2 (- \frac{Δ [ O _{2} ]}{Δ t})$
$∴ \frac{- Δ [ S O _{2} ]}{Δ t} = 2 \times 2.5 \times 1 0^{- 4} m o l L - 1 s^{- 1}$
$= 5.0 \times 1 0^{- 4} m o l L^{- 1} s^{- 1}$
$= 50.0 \times 1 0^{- 5} m o l L^{- 1} s^{- 1}$ .

Q. Contact process is used in the formation of sulphur trioxide, 2SO2​(g)+O2​(g)⇌2SO3​(g) The rate of reaction can be expressed as Δt−Δ[O2​]​=2.5×10−4molL−1s−1. Then rate of disappearance of [SO2​] will be

50.0×10−5molL−1s−1

3.75×10−4molL−1s−1

2.5×10−4molL−1s−1

4.12×10−4molL−1s−1