A) \[\Delta H=\Delta U\]
B) \[\Delta H>\Delta U\]
C) \[\Delta H<\Delta U\]
D) \[\Delta H\] and \[\Delta U\] has no relation with each other
Correct Answer: C
Solution :
[c] \[\Delta H=\Delta U+\Delta nRT\] \[\Delta n={{n}_{p}}-{{n}_{R}}\] Now, \[\Delta n=2-\frac{5}{2}=-\frac{1}{2}\] \[\therefore \text{ }\Delta H=\Delta U-\frac{1}{2}RT\] Thus, \[\Delta U=\Delta H+\frac{1}{2}RT\] \[\therefore \text{ }\Delta U>\Delta H\]You need to login to perform this action.
You will be redirected in
3 sec