1.

Decomposition of phosphine on tungsten at low pressure is a first order reaction. This is because the

Answer»

Since the options are not given, I am giving the answer BASED on the options from another website.

The CORRECT answer should be - Rate is proportional to the surface coverage 

Rate = k[PH₃]


The rate is dependent on the surface coverage as under conditions of low pressure, the surface area covered will be proportional to the partial pressure of PHOSPHINE (PH₃). So, it will be a FIRST order reaction with respect to Phosphine (PH₃).


The EQUATIONS are here -


θ = 1+kP1+kP


θ = fraction of surface area covered at low pressure


θ = k P



Discussion

No Comment Found