1. Tardigrade
  2. Question
  3. Chemistry
  4. 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

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Q. Contact process is used in the formation of sulphur trioxide,
$2 SO _{2}(g)+ O _{2}(g) \rightleftharpoons 2 SO _{3}(g)$
The rate of reaction can be expressed as $\frac{-\Delta\left[ O _{2}\right]}{\Delta t}=2.5 \times 10^{-4} mol\, L ^{-1} \,s ^{-1}$. Then rate of disappearance of $\left[ SO _{2}\right]$ will be

Chemical Kinetics

Solution:

$\frac{-\Delta\left[ SO _{2}\right]}{\Delta t}=2\left(-\frac{\Delta\left[ O _{2}\right]}{\Delta t}\right)$
$\therefore \frac{-\Delta\left[ SO _{2}\right]}{\Delta t}=2 \times 2.5 \times 10^{-4} mol\, L -1 s ^{-1}$
$=5.0 \times 10^{-4} mol\, L ^{-1} s ^{-1}$
$=50.0 \times 10^{-5} mol\, L ^{-1} s ^{-1}$.