Chemical Thermodynamics Question 416
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
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-( 1+5 ) $
$ =3-6=-3 $
$ \Delta H-\Delta E=( -3RT ) $
