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NEET · Chemistry · STD 12 - 3. Chemical kinetics
The decomposition of phosphine \((PH_3)\) on tungsten at low pressure is a first-order reaction. It is because the
- A rate is proportional to the surface coverage
- B rate is inversely proportional to the surface coverage
- C rate is independent of the surface coverage
- D rate of decomposition is very slow.
Answer & Solution
Correct Answer
(A) rate is proportional to the surface coverage
Step-by-step Solution
Detailed explanation
\(\mathrm{PH}_{3} \stackrel{W}{\longrightarrow} \mathrm{P}+\frac{3}{2} \mathrm{H}_{2}\) Rate \(=\mathrm{k}\left[\mathrm{PH}_{3}\right]\)
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