Is it always true that the molecules of a dense liquid are heavier than the molecules of a lighter liquid?

The potential energy of a molecule on the surface of a liquid compared to that of a molecules inside the liquid is ……………. .

The molecules of a gas A travel four times faster than the molecules of gas B at the same temperature. The ratio of molecular weight (M_A // M_B) will be

If the density of a solid is higher than that of a liquid it _________ in that liquid.

If the density of a solid is lower than that of a liquid it _________ in that liquid.

Why do gases always tend to be less soluble in liquids as the temperature is raised ?

Select the correct reason for, Small droplets of a liquid are usually more spherical in shape than larger drops of the same liquid because:

Which of the following statement are correct? (i) Cell membranes allow water and non polar molecular to prmeate by simple diffusion. (ii)Polar molecules like amino acids can also diffuse through membrane. (iii)Smallermolecules diffuse faster than larger molecules. (iv)Larger molecules diffuse faster than smaller molecules.

The molecules contains more than two atoms are called ________ molecule.