If the entropy of a solid is greater than zero at $T = 0 \ K$,it is called:

The entropy of a perfectly crystalline solid at absolute zero is

Identify the correct statement regarding entropy.

Fill in the blanks:
$(i)$ The standard enthalpy of formation of any element in its reference state is considered to be $.........$.
$(ii)$ The scientist $.........$ stated that the entropy of a perfectly crystalline substance decreases with a decrease in temperature.
$(iii)$ At absolute zero temperature,the entropy of a perfectly crystalline substance is zero. This statement represents the $.........$ law of thermodynamics.

Which of the following state functions is not zero at the standard state?

State the third law of thermodynamics.