$Δ H_{n e u t r a l i s a t i o n}$ is always:

positive

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negative

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zero

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positive or negative

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Solution

The correct option is B negative
Energy (heat) is produced when an acid reacts with a base in a neutralisation reaction.
Neutralisation reactions are exothermic
$Δ H$ for a neutralisation reaction is negative.
Molar heat of neutralisation (molar enthalpy of neutralisation) is the energy liberated per mole of water forming during a neutralisation reaction.
$Δ H_{n e u t}$ is the symbol given to the molar heat of neutralisation.
$Δ H_{n e u t}$ is usually given in units of kJ/mol.

Suggest Corrections

Similar questions

(1 M)

- 56.9 k J / m o l

1.8

k J / m o l

Δ H_{n e u t r a l i s a t i o n}

= - 57.3 K J / m o l

Which is greater?

(a) 0.3 or 0.4 (b) 0.07 or 0.02

(e) 1.23 or 1.2 (f) 0.099 or 0.19

(g) 1.5 or 1.50 (h) 1.431 or 1.490

(i) 3.3 or 3.300 (j) 5.64 or 5.603

Which is greater?

(i) 0.5 or 0.05 (ii) 0.7 or 0.5 (iii) 7 or 0.7

(iv) 1.37 or 1.49 (v) 2.03 or 2.30 (vi) 0.8 or 0.88

Concentration is also called “Ore dressing” or “Benefaction”. True or False?

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