Chemical Thermodynamics Question 431

Question: At constant T and P, which one of the following statements is correct for the reaction, $ CO(g)+\frac{1}{2}O_2(g)\to CO_2(g) $

Options:

A) $ \Delta H $ is independent of the physical state of the reactants of that compound

B) $ \Delta H,>,\Delta E $

C) $ \Delta H,<,\Delta E $

D) $ \Delta H=\Delta E $

Show Answer

Answer:

Correct Answer: C

Solution:

  • $ \Delta n_{g}=1-\frac{3}{2}=\frac{-1}{2} $ , As $ \Delta n_{g} $ is negative, thus $ \Delta H<\Delta E $ .


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