When 25.0cm³ 0.100moldm⁻³ NaOH(aq) is mixed with 25.0cm³ 0.100moldm⁻³ HCl(aq) at the same temperature, a temperature rise, ∆T, is recorded. What is the expression, in kJ mol⁻¹, for the enthalpy of neutralisation? (Assume the density of the mixture = 1.00 g cm⁻³ and its specific heat capacity=4.18kJkg⁻¹K⁻¹ =4.18Jg⁻¹K⁻¹)

A. $- \frac{{25.0 \times 4.18 \times \Delta T}}{{50.0 \times 0.100}}$

B. $- \frac{{25.0 \times 4.18 \times \Delta T}}{{25.0 \times 0.100}}$

C. $- \frac{{50.0 \times 4.18 \times \Delta T}}{{50.0 \times 0.100}}$

D. $- \frac{{50.0 \times 4.18 \times \Delta T}}{{25.0 \times 0.100}}$

D