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

Question

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 (A)  57.0 kJ  (B)  11.4 kJ  (C)  28.5 kJ  (D)  34.9 kJ

Tardigrade Admin · Accepted Answer

∵ 0.2 mole will neutralise 0.2 mole of HNO 3. ∴ Heat evolved =57 × 0.2 =11.4 kJ

Q. The heat of neutralisation of a strong acid and a strong alkali is $57.0 k J m o l^{- 1}$ . The heat released when $0.5$ mole of $H N O_{3}$ solution is mixed with $0 : 2$ mole of $K O H$ is

$57.0 k J$

$11.4 k J$

$28.5 k J$

$34.9 k J$

$∵ 0.2$ mole will neutralise 0.2 mole of $H N O_{3}$ .

$∴$ Heat evolved $= 57 \times 0.2$

$= 11.4 k J$

Q. The heat of neutralisation of a strong acid and a strong alkali is 57.0kJmol−1 . The heat released when 0.5 mole of HNO3​ solution is mixed with 0:2 mole of KOH is

57.0kJ

11.4kJ

28.5kJ

34.9kJ