When 1 mole of strong diprotic acid `H_(2)A` (completely ionised) is completely neutralized by `NaOH` then amount of heat is released is `"E" KJ mol^(-1)` . Calculate amount of heat relased when one mole of weak monoprotic acid `HB` completely neutralized by `NaOH`.
A
`E`
B
less than `E//2`
C
greater than `E//2`
D
None of these
Text Solution
Verified by Experts
The correct Answer is:
B
When 1 mole of strong………. `underset((SA))(H_(2)A)+2NaOH underset((SB))rarr2NaA+2H_(2)O Delta H = E` `underset((WA))(HB)+NaOH rarr NaB+H_(2)O Delta H lt (E )/(2)` `HB` is monoprotic & weak acid, so few amount of energy is required for its dissociation.
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