An aqueous solution is 1.00 molalin KI. Which change will cause the vapour pressure of the solution to increase ?
a) addition of water
b) addtion of NaCl
c) addtion of `Na_(2)So_(4)`
d) Addition of 1.0 molal KI

Options

A. addition of water
B. addtion of NaCl
C. addtion of `Na_(2)So_(4)`
D. Addition of 1.0 molal KI

Answer

a