Integral enthalpy of solution of KCI, when 1 mole of it is dissolved in 20 mole water is +15.90 kJ. When 1 mole of it is dissolved in 200 mole water. `Delta H` is 18.58 kJ. Calculate enthalpy of hydration or dilution.

Explanation

To calculate the enthalpy of hydration or dilution for KCl when it is dissolved in different amounts of water, we can follow these steps:

### Step 1: Understand the Given Data
We have two scenarios for the dissolution of KCl:
1. When 1 mole of KCl is dissolved in 20 moles of water, the integral enthalpy of solution (ΔH1) is +15.90 kJ.
2. When 1 mole of KCl is dissolved in 200 moles of water, the integral enthalpy of solution (ΔH2) is +18.58 kJ.

### Step 2: Define the Enthalpy of Hydration
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