The heat evolved in kcal for the process at of dissolving 1.0 mole of KCl in excess…

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

Problem

The heat evolved in kcal for the process at

25^\circ\text{C}

of dissolving 1.0 mole of KCl in excess of water as

\text{KCl}_{(s)} \longrightarrow \text{K}^+ + \text{Cl}^-

(Given :

\Delta H_f^\circ

\text{K}^+_{(aq)}

\text{Cl}^-_{(aq)}

and

\text{KCl}_{(s)}

are

-60

-40

and

-104

kcal/mole).