1.

The heat of neutralisation of a strong base and a strong acid is 13.7 kcal. The heat released when 0.6 mole HCl solution is added to 0.25 mole of NaOH is

Answer»

3.425 kcal
8.22 kcal
11.645 kcal
13.7 kcal

Solution :For the neutralisation between a strong acid and a strong base, equal number of moles of `H^+`(from acid) and OH (from base) come out. For ONE mole of such, following equation can be DRAWN:

So, 0.25 mole of `H_2O`is produced.
` therefore `Heat RELEASED = `(0.25 xx 13.7) = 3.425 kcal`


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