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. $



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