The heat of neutralisation of a strong acid and a strong alkali is 57.0 kJ mol-1. The heat released when 0.5 mole of HNO3 solution is mixed with 0.2 mole of KOH is
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a
57.0 kJ
b
11.4 kJ
c
28.5 kJ
d
34.9 kJ
answer is B.
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Detailed Solution
From the given data,Only 0.2 moles of each of HNO3 and KOH will be neutralized.So. 1 mol requires 57.0 kJ∴ 0.2 mol requires 57.0 × 0.2 kJ =11.4 kJ