Chemical Thermodynamics Question 277
Question: $ C(s)+O_2(g),\to ,CO_2;\Delta H=-94,kcal $
$ CO(g)+\frac{1}{2}O_2(g),\to ,CO_2;,\Delta H=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+\frac{1}{2}O_2\to CO;,\Delta H=-229.2. $
