When the salt is added to water, the surface tension of liquid mixture will
Remain unaltered
Decrease
Depends on the quantity of water
Increase
If the solute is highly soluble, the surface tension of liquid increases.
Which of the following changes decrease the vaporise pressure of water kept in a sealed vessel?
(a) Decreasing the quantity of water
(b) Adding salt to the water
(c) Decreasing the volume of the vessel to one-half
(d) Decreasing the temperature of the water