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

Options

A. At 400K and 1 atm pressure `Delta G = 0`
B. At 400 K and 2 atm pressure `Delta G = +ve`
C. at 400 K and 0.1 atm pressure `Delta G = -ve`
D. at 410 K and 1atm pressure `Delta G = +ve`

Answer

A, B, C

Explanation

`X(liq) overset(400K)underset(underset(1atm)(larr))rarr X (g), Delta G = 0`