HF is liquid but HCl is gas . Explain.

Answer the following: Why H_2O is a liquid whereas H_2S is gas at room temperature?

Give one example each of solid in a gas and liquid in gas solution.

A liquid has a definite volume but not shape of its own. Explain.

State and explain Pascal's law of transmission of liquid pressure. Explain how this principle is applied in hydraulic lift.

State the formula relating pressure of a gas with its mole fraction in a liquid solution in contact with it.

The specific gravity of two liquid is 0.8 and 0.5. Thermal capacity of one liquid with 3 litter is equal to the thermal capacity of other liquid with 2 litter. Compare the specific heat.

On expanding at constant temperature the pressure of a gas decreases.Explain on kinetic theory.

For a noble gas atom is it possible to have covalent radius? Explain.

The solubility of a gas in liquid is affected by pressure. Which law is associated with it ? Write the mathematical expression of the law.

State Rault's law for solution of volatile liquid. Taking suitable examples explain the meaning of positive and negative deviation from Rault's law.