In dilute solution the heat of the reaction NaOH + HCl = NaCl + H2O...

JAMB 1984

In dilute solution the heat of the reaction NaOH + HCl = NaCl + H2O is - 57.3kJ. Therefore the heat of the reaction 2NaOH + H₂SO₄ \(\to\) Na₂SO₄ + 2H₂O is

A. + 28.65 kJ
B. - 28.65KJ
C. + 57.3KJ
D. - 114.6 KJ
E. - 229.2 KJ

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Correct Answer: Option D

Explanation

NaOH + HCl = NaCl + H₂O \(\Delta\)H = -57.3kJ

Heat of reaction of 2NaOH + H₂O₄

NaSO₄ + H₂O is

= 57.3 x 2 = -114.6 kJ

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In dilute solution the heat of the reaction NaOH + HCl = NaCl + H2O...

Correct Answer: Option D

Explanation

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