Question

Anhydrous copper sulphate was dissolved in a beaker and hydrated copper sulphate was dissolved in another beaker. What heat changes do you expect in these beakers and why ? Please help me​

Answer 1

Answer:

The reaction between water and copper sulphate is exothermic.

Hydrated copper sulphate already has some water of crystallisation, hence we expect less heat to be emitted.

When we dissolve two solids in different beakers containing water.

In the case of hydrated copper sulphate we observe a lower temperature when measured with a thermometer, than anhydrous copper sulphate solution.

This is because more heat is released in anhydrous copper sulphate solution.

This is the only reason.