In an experiment

CHEMISTRY · Single correct · A Level · Chemistry · Energetics · Energetics

Problem

In an experiment,

50 \text{ cm}^3

of a solution of HCl with a concentration of

1 \text{ mol dm}^{-3}

was reacted with

50 \text{ cm}^3

of a solution of NaOH with a concentration of

1 \text{ mol dm}^{-3}

. The temperature of the solution increased by 12 °C. Calculate the temperature rise if

50 \text{ cm}^3

of the same HCl solution was reacted with 50 cm³ of a solution of NaOH with a concentration of 0.5 mol dm^-3. (1) 6 °C (2) 12 °C (3) 24 °C (4) 3 °C