Decomposition reaction of ammonia on Pt surface has rate constant = `2.5 xx 10^(-1) "mol" L^(-1) sec^(-1)`. What is order of reaction ?

Explanation

To determine the order of the reaction based on the given rate constant, we can follow these steps:

### Step 1: Understand the Units of the Rate Constant
The rate constant \( k \) for a reaction has units that depend on the order of the reaction. The general form of the units for the rate constant is given by:
\[ \text{Units of } k = \text{mol}^{-n} \, \text{L}^{n-1} \, \text{s}^{-1} \]
where \( n \) is the order of the reaction.
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