Chemistry, asked by Julyin843, 10 months ago

The decomposition of phosphine (PH₃) on tungsten at low pressure is a first-order reaction. It is because the
(1) rate is proportional to the surface coverage
(2) rate is inversely proportional to the surface coverage
(3) rate is independent of the surface coverage
(4) rate of decomposition is very slow.

Answers

Answered by ps2004

Answer:

The decomposition of PH3 on tungsten at low pressure is a first order reaction because surface area coverage is proportional to partial pressure of PH3. Hence, rate is proportional to the surface coverage.

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