The total amount of energy in the universe is fixed,but

Which of the following has the highest entropy per mole?

When naphthalene is heated strongly,it undergoes sublimation. What happens to the entropy of the system?

Which of the following reactions has $\Delta S > 0$?

The value of $\Delta S$ for freezing of $10 \ g$ of $H_2O_{(l)}$ (enthalpy of fusion is $80 \ cal/g$) at $0 \ ^\circ C$ and $1 \ atm$ pressure is.......$J/K$

State the limitation of the second law of thermodynamics.