Question

When equal volume of 1M HCl and 1M H$_2$SO$_4$ are separately neutralized by excess volume of 1M NaOH solution, X and Y kJ of heat is liberated respectively. The value of Y/X is ____.

Answer 1

Neutralization reactions:

$\mathrm{H^+ + OH^- \rightarrow H_2O} \quad (\text{from HCl: } X),$
$\mathrm{2H^+ + 2OH^- \rightarrow 2H_2O} \quad (\text{from } H_2SO_4: Y).$

From the reactions:

$Y = 2X \implies \frac{Y}{X} = 2.$

Final Answer: 2.