Sagot :
[tex]\green{colorbox{black}{√\:Verified\:answer}}[/tex]
The correct option is b. For a reaction to be spontaneous, the most essential condition is that the entropy should be positive.
[tex]\Large\blue {\overline { \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}[/tex]