The vapour density of `Pcl_(5)` is `104.16` but when heated to `230^(@)C`, its vapour density is reduced to `62`. The degree of dissociation of `PCl_(5)` at `230^(@)C` is …………

Explanation

To find the degree of dissociation of \( PCl_5 \) at \( 230^\circ C \), we can follow these steps:

### Step 1: Understand the Reaction
The dissociation of \( PCl_5 \) can be represented as:
\[ PCl_5 \rightleftharpoons PCl_3 + Cl_2 \]
Initially, we have \( PCl_5 \) only, and as it dissociates, it produces \( PCl_3 \) and \( Cl_2 \).
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