Chemical Thermodynamics Question 207
Question: Reaction, $ H_2(g)+I_2(g)\to 2HI(g) $
$ \Delta H=-12.40,kcal $ . According to this, the heat of formation of HI will be [MP PET 1990]
Options:
A) 12.4 kcal
B) - 12.4 kcal
C) - 6.20 kcal
D) 6.20 kcal
Show Answer
Answer:
Correct Answer: C
Solution:
Heat of formation is for 1 mole.
Hence $ \Delta H_{f}^{0},(HI)=-12.40/2=-6.20,kcal. $