The enthalpy of solution (∆H) of NaNO₃ is 20.4 kJ/mol. If 5.25 g NaNO₃ is dissolved in enough water to make a 100.0 mL solution, what is the change in temperature (°C) of the solution? (The specific heat capacity of the solution is 4.184 J/g･°C and the density of the solution is 1.02 g/mL).