Question

$1\, mol$ of $H _{2} SO _{4}$ is mixed with $2$ moles of $NaOH$. The heat evolved will be

• A. $57.3\, kJ$
• B. $2\times 57.3\,kJ$
• C. $57.3/2\,kJ$
• D. cannot be predicted

Answer 1

Answer: (B)

$2\times 57.3\,kJ$

Answer 2

$\because 1\, mol$ of $H_{2} S O_{4}=2\, g$ equivalent of $H _{2} SO _{4}$
Hence, when $1\, mol$ of $H _{2} SO _{4}$ is mixed with $2$ moles of $NaOH$,
the heat evolved will be $2 \times 57.3\, kJ$.