For the reaction `2CI(g) to CI_(2)(g)`
What are the signs of `DeltaH` and `DeltaS`? what would be the nature of reaction

Explanation

To determine the signs of ΔH (change in enthalpy) and ΔS (change in entropy) for the reaction \(2Cl(g) \rightarrow Cl_2(g)\), we can analyze the reaction step by step.

### Step 1: Analyze the Change in Moles of Gas
In the given reaction, we start with 2 moles of chlorine gas (Cl) and end with 1 mole of chlorine gas (Cl2).

- **Initial moles of gas**: 2 (from 2Cl)
- **Final moles of gas**: 1 (from Cl2)

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