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When 400 ml of 2.0 N solution of a weak ...

When 400 ml of 2.0 N solution of a weak acid is neutralized by a dilute aqueous solution of sodium hydroxide under standard conditions, 4.4 kJ amount of heat is liberated. Therefore, the standard enthalpy of neutralization of this weak acid in kJ `eq^(-1)` is

A

`-11`

B

`-44`

C

`-55`

D

`-22`

Text Solution

Verified by Experts

The correct Answer is:
C
No. of equivalents of weak acid 0.4 `xx` 0.2 = 0.08 So, amount of heat liberated per equivalent `= (4.4)/(0.08) = -55` kJ
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