For azeotrope mixtures (x and y are mole fractions of liquid and vapor respectively),
I. (∂P/∂x) = 0
II. (∂P/∂y) = 0
III. Azeotrope mixtures have the highest temperature.
IV. (∂T/∂x) = 0
V. (∂T/∂y) = 0
Which situations are true?
a) I and II
b) IV and V
c) I, II, IV, and V
d) III
e) I and IV