Chemical Thermodynamics Question 341

Question: Equal volumes of methanoic acid and sodium hydroxide are mixed. If x is the heat of formation of water, then heat evolved on neutralization is

Options:

A) more than x

B) equal to x

C) less than x

D) twice x.

Show Answer

Answer:

Correct Answer: C

Solution:

Neutralisation of weak acid with strong base hence $ <x $ . Extra heat is utilised to effect the ionisation of weak acid.



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