Suppose an endothermic reaction has a positive change in entropy greater than the heat absorbed. What can be said about the spontaneity of this reaction?
If the entropy is greater than the enthalpy, it will have more spontinaity
Explanation:
Since the given reaction is endothermic, therefore value of \(\Delta H\) is positive. Also, it is given that value of \(\Delta S\) is positive, that is, there will be increase in entropy.
Hence, relation between spontaneity and entropy is as follows.
\(Delta G = \Delta H - T \Delta S\)
= +ve - (+ve. +ve)
= +ve - ve
= -ve
Therefore, we can conclude that there will be increase in spontaneity of the said reaction.