Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The decomposition of phosphine 
on tungsten at low pressure is a first ‐ order reaction. It is because the
Text Solution
Verified by ExpertsThe correct answer is:
A
At low pressure, rate is proportional to the surface coverage and is of first order while at high pressure, it follows zero order kinetics due to complete coverage of surface area.
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