A) \[\Delta E\]is always greater than \[\Delta H\]
B) \[\Delta E\]is always less than \[\Delta H\]
C) \[\Delta E\]may be lesser or greater or equal to \[\Delta H\]
D) \[\Delta E\]is always proportional to \[\Delta H\]
Correct Answer: C
Solution :
\[\Delta \Epsilon \]may be greater or lesser or equal to \[\Delta H.\] \[\because \]\[\Delta \Eta =\Delta E+P\Delta V=\Delta E+\Delta n\,RT\] If \[\Delta n>0\]then \[\Delta H>\Delta E\] If \[\Delta n<0\]then \[\Delta H<\Delta E\] For solids and liquids \[\Delta H=\Delta E\]
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