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Standard VIII

Chemistry

Neutralisation Reaction

The amount of...

Question

The amount of energy released in neutralisation reaction between strong acid and strong base is:

57.8 kJ/mol

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57.1 kJ/mol

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57.9 kJ/mol

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56.1 kJ/mol

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Solution

The correct option is B 57.1 kJ/mol
A strong acid like $H C l$ and a strong base $N a O H$ dissociate completely into their ions in aqueous solution. The neutralization of hydrogen and hydroxyl ions give water.

This solution is said to be neutral as no excess hydrogen ions are left and the value is 7. This is an exothermic reaction and energy released is -57.1 kJ/mol.

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