The normal boiling point of a liquid X is 400 K. Which of the following statement is true about the process X(l)⇌X(g)?

x(l)⇌x(g) Tb0=400K(1) At 400 K 1 atm pressure ΔG=0(2) at 2 atm and 400 K, ΔG=+ ve (3) at 400 K and 0.1 atm pressure, ΔG=− ve (4) at 410 K and 1 atm pressure, ΔG=− ve