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QNEET-2016-Ch-1135: NEET 2016 Chemistry - Class 12 NEET-2016-Ch-1135 Solution: The decomposition of phosphine (\(PH_3\)) on tungsten at low…
The decomposition of phosphine () 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.
Multiple Choice Options
- 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.
Step-by-Step Verified Solution
At low pressure, rate is proportional to the
surface coverage and is of first order while at
high pressure it follows zero order kinetic due to
complete coverage of surface area.