Which of the following acid will release maximum amount of heat when completely

Question

Which of the following acid will release maximum amount of heat when completely neutralized by strong base NaOH?

Options:

A . 1M HCl

B . 1M HNO3

C . 1M HClO4

D . 1M H2SO4

Answer: Option D
:
D
Ionisation of

H_{2} S O_{4}

gives double amount of

H^{+}

ions as compared to other acids

H_{2} S O_{4} ⟶ 2 H^{+} + S O_{4}^{- 2}

Therefore 1M

H_{2} S O_{4}

release more amount of heat compared to others.

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