Chemical Thermodynamics Question 277

Question: C(s)+O2(g),,CO2;ΔH=94,kcal

CO(g)+12O2(g),,CO2;,ΔH=135.2,kcal Then heat of formation of CO(g) is [DCE 2001]

Options:

A) - 26.4 kcal

B) 41.2 kcal

C) 26.4 kcal

D) - 229.2 kcal

Show Answer

Answer:

Correct Answer: D

Solution:

By (i) - (ii) : C+12O2CO;,ΔH=229.2.



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