Chemical Thermodynamics Question 279

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 $ ⇌ $ MO+X $ is given by [AMU 2001]

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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