Question

At low pressure, the fraction of the surface covered
follows
(1) zero-order reaction (2) second-order reaction
(3) first-order reaction (4) fractional order
GIVE PROPER EXPLAINATION OR ELSE ANSWER WILL BE REPORTED ​

Answer 1

Answer:

(3) first-order reaction

because At low pressure (P ---- A→0), θ A is very small and proportional to the pressure.

The rate becomes first order rate (low P) = k2 kA PA

If a substance is adsorbed on surfaces.

It is the first order reaction.

Explanation:

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