More energy is required to break associated molecules. Therefore, they have a higher boiling point. Since ethers do not have hydrogen bonding. Therefore, the boiling point of an alcohol is higher than the boiling point of its isomer ether.
As the molecular weight increases, their boiling point and melting point also increase.
The following is the decreasing order of the boiling point in primary secondary and tertiery alcohols.
Primary Alcohol > Secondary Alcohol > Tertiary Alcohol
Solubility: With increasing molecular weight, their solubility decreases in water. The initial members of this class merge more in water because the –OH group present in them forms hydrogen bonds with water molecules. As the chain increases, the characteristic properties of alkenes in alcohols increase as the chain increases. For this reason the solubility of high alcohols in water decreases.