A coffee-cup calorimeter

A student dissolves a salt in water in a foam cup and records the temperature before and after. You will find the temperature change, the heat taken up by the water, and the enthalpy of solution per mole.

The idea. The water takes up the heat the process gives out, so $\Delta H = -q$, divided by the moles. A fall in temperature gives a positive $\Delta H$.

Your tasks.

1. Set change to the change in temperature, final minus initial, in K.
2. Set q to the heat taken up by the water, in J.
3. Set dH to the enthalpy change in kJ/mol.