Question

1 mole of $H_{2}S{O}_4$ is mixed with 2 moles of $NaOH$ . The heat evolved will be

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

Answer 1

Answer: (B)

1 mole of $H_{2}S{O}_4=2$ g-equivalent of $H_{2}S{O}_4$ Hence, when 1 mole of $H_{2}S{O}_4$ is mixed with 2 moles of $NaOH,$ the heat evolved will be $2\times$ $57.3kJ$ .