Chemical Thermodynamics Question 446

Question: The following thermochemical reactions are given

$ M+\frac{1}{2}O_2\to MO+351.4,kJ $

$ X+\frac{1}{2}O_2\to XO+90.8,kJ $

It follows that the heat of reaction for the following process $ M+XO $

$ \leftrightharpoons $

$ MO+X $ is given by

Options:

A) 422.2 kJ

B) 268.7 kJ.

C) - 442.2 kJ

D) 260.6 kJ

Show Answer

Answer:

Correct Answer: D

Solution:

  • By (i) - (ii) and find required result.


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