A student added of ammonium chloride to of water

CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics

Problem

A student added

5.35\,\text{g}

of ammonium chloride to

100.00\,\text{cm}^3

of water. The initial temperature of the water was

25.55\,^{\circ}\text{C}

, but it decreased to

21.79\,^{\circ}\text{C}

. Calculate the enthalpy change that would occur when

1\,\text{mol}

of the solute is added to

1.000\,\text{dm}^3

of water.