Explain why Vapour pressure of a liquid decreases when a non-volatile solute is added to it.

Explain why Solubility of gases decrease when a non-volatile solute is added to it.

Explain why Vapour pressure of a liquid is constant at constant temperature.

The vapour pressure of water is 12.3 kPa at 300 K. Calculate vapour pressure of 1 molal solution of a non-volatile solute in it.

Explain why Air pressure in a car tyre increases during driving.

100 g of liquid A (molar mass 140 g mol^-1) was dissolved in 1000g of liquid B (molar mass 180 g mol^-1) . The vapour pressure of pure liquid B was found to be 500 torr: Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is 475 Torr.

Explain why Surface tension of a liquid is independent of the area of the surface

Explain why Atmospheric pressure at a height of about 6 km decreases to nearly half of its value at the sea level, though the height of the atmosphere is more than 100 km

A solution containing 30g of non-volatile solute exactly in 90g of water has a vapour pressure of 2.8 kPa at 298 K. Further, 18 g of water is then added to the solution and the new vapour pressure becomes 2.9 kPa at 298 K. Calculate: molar mass of the solute

Explain why A drop of liquid under no external forces is always spherical in shape

Explain why (a) The blood pressure in humans is greater at the feet than at the brain