Which of the following is always an exothermic process?

Enthalpy of atomization

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Enthalpy of fusion

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Enthalpy of neutralization

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Enthalpy of sublimation

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Solution

The correct option is C Enthalpy of neutralization
Solution:- (C) Enthalpy of neutralisation
When an acid is neutralised by an alkali the reaction is exothermic. The other ions are spectators. Bond formation is an exothermic process hence the reaction is exothermic because bonds are being formed.

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Q. Which of the following are exothermic processes?
(i) Reaction of water with quicklime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)

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Question 4

Which of the following are exothermic processes?

(i) Reaction of water with quicklime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (iii) and (iv)

Q. Enthalpy of is always exothermic.

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Which of the following is always an exothermic process?

The correct option is C Enthalpy of neutralizationSolution:- (C) Enthalpy of neutralisationWhen an acid is neutralised by an alkali the reaction is exothermic. The other ions are spectators. Bond formation is an exothermic process hence the reaction is exothermic because bonds are being formed.

The correct option is C Enthalpy of neutralization
Solution:- (C) Enthalpy of neutralisation
When an acid is neutralised by an alkali the reaction is exothermic. The other ions are spectators. Bond formation is an exothermic process hence the reaction is exothermic because bonds are being formed.