A student combined $25.0\,\text{cm}^3$ of $0.350\,\text{mol dm}^{-3}$ sodium hydroxide solution with $25.0\,\text{cm}^3$ of $0.350\,\text{mol dm}^{-3}$ hydrochloric acid. The temperature increased by $2.50\,^\circ\text{C}$. Assume that none of the heat was transferred to the surroundings. The resulting mixture had a specific heat capacity of $4.20\,\text{J cm}^{-3}\,\text{K}^{-1}$. Calculate the molar enthalpy change for the reaction.
- A$-150\,\text{kJ mol}^{-1}$
- B$-60.0\,\text{kJ mol}^{-1}$
- C$-30.0\,\text{kJ mol}^{-1}$
- D$-0.150\,\text{kJ mol}^{-1}$