Chemical Thermodynamics Question 243

Question: $ C+\frac{1}{2}O_2\to CO;,\Delta H=-42,kJ $

$ CO+\frac{1}{2}O_2\to CO_2;,\Delta H=-24,kJ $ The heat of formation of $ CO_2 $ is [CPMT 1996]

Options:

A) - 16 kJ

B) + 66 kJ

C) + 16 kJ

D) - 66 kJ

Show Answer

Answer:

Correct Answer: D

Solution:

eq. (i) + eq. (ii) gives the required result.



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