For a reaction :
`2NH_(3)(g) overset(Pt)rarr N_(2)(g)+3H_(2)(g)` Rate = k
(i) Write the order and molecularity of this reaction.
(ii) Write the unit of k.

Explanation

To solve the given question, we will break it down into two parts: (i) determining the order and molecularity of the reaction, and (ii) finding the unit of the rate constant \( k \).

### Step-by-Step Solution:

#### (i) Order and Molecularity of the Reaction

1. **Understanding the Rate Expression**:
- The rate of the reaction is given as \( \text{Rate} = k \).
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