Chemical Thermodynamics Question 369

Question: Enthalpy of neutralisation of $ HCl $ with $ NaOH $ is x. The heat evolved when $ 500mL $ of $ 2NHCl $ are mixed with $ 250mL $ of $ 4NNaOH $ will be.

Options:

A) $ 500x $

B) $ 100x $

C) $ x $

D) $ ~10x $

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Answer:

Correct Answer: C

Solution:

  • Enthalpy of neutralisation of $ HCl $ with $ NaOH $ is x. In question gev of $ HCl $

$ ( \frac{500\times 2}{1000}=1gev ),and,NaOH( \frac{250\times 4}{1000}=1gev ) $ hence the value x.



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