Maximum entropy will be in which of the following?

The positive value of $\Delta S$ indicates that

Fill in the blanks:
$(i)$ The entropy of one mole of a substance at a fixed temperature and standard state is called ........ .
$(ii)$ The unit of molar entropy is .......... .
$(iii)$ The process of conversion of graphite into diamond is of ........ type.

Change in entropy is positive for

For which of the following processes,$\Delta S$ is negative?

Entropy is maximum in case of