Question

How much heat will be released when 5 L of 0.2 M $H_{2}S{O}_4$ is completely neutralized by strong base. If heat of neutralization of strong acid and strong base is $-57.3$ kJ.

• A. 57.3 kJ
• B. 114.6 kJ
• C. 229.2 kJ
• D. 28.6 kJ

Answer 1

The correct option is B 114.6 kJ

The number of the moles would be the given volume multiplied with the molarity of the acid
$n_{H_{2}S{O}_4=5\times 0.2=1}$
The moles of $H^{+}=2$
Heat released = $2\times (-57.3)=-114.6kJ$