Chemical Thermodynamics Question 97

Question: If $ \Delta H $ is the change in enthalpy and $ \Delta E $ the change in internal energy accompanying a gaseous reaction KCET 1989; CBSE PMT 1990]

Options:

A) $ \Delta H $ is always greater than $ \Delta E $

B) $ \Delta H<\Delta E $ only if the number of moles of the products is greater than the number of the reactants

C) $ \Delta H $ is always less than $ \Delta E $

D) $ \Delta H<\Delta E $ only if the number of moles of the products is less than the number of moles of the reactants

Show Answer

Answer:

Correct Answer: D

Solution:

If $ \Delta n=-ve $ than $ \Delta H<\Delta E $ .



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