The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction. It is because the

Question

The decomposition of phosphine (PH₃) on tungsten at low pressure is a first-order reaction. It is because the

rate is proportional to the surface coverage

rate is inversely proportional to the surface coverage

rate is independent of the surface coverage

rate of decomposition is very slow.

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