Chemical Thermodynamics Question 118

Question: For the reaction, $ C_3H_8(g)+5O_2(g)\to 3CO_2(g)+4H_2O(l) $ at constant temperature, $ \Delta H-\Delta E $ is [CBSE PMT 2003]

Options:

A) - RT

B) + RT

C) - 3RT

D) + 3RT

Show Answer

Answer:

Correct Answer: C

Solution:

$ \Delta H-\Delta E=\Delta nRT $ ; $ \Delta n=-3 $ so, $ \Delta H-\Delta E=-3RT $ .



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