When 1.0 g of potassium chloride, KCl, is dissolved in 25 mL (=25 g) of water, it causes the temperature to drop from 24.33^o C to 22.12^o C. What is the molar enthalpy of dissolution for KCl?
1 Answer
The energy absorbed from the water by this endothermic reaction is approximately
Explanation:
The reaction in question is:
The reaction is endothermic, so the value of
This is the amount of energy absorbed from the water by the process of dissolving the
One gram of KCl is:
That means the total energy gain if we had dissolved an entire mole,