Hydrogen Bond (3)

Chemistry

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Effect of Hydrogen Bonds on The Physical Properties of Substances (2)

In the covalent compound of ethanol, C2H5OH, there are hydrogen bonds formed between molecules, other than weak Van der Waals attraction forces

Effect of Hydrogen Bonds on The Physical Properties of Substances (3)

Strong hydrogen bonds are difficult to break

Effect of Hydrogen Bonds on The Physical Properties of Substances (4)

More heat energy is required to overcome the weak Van der Waals attraction forces, besides breaking the hydrogen bonds

Effect of Hydrogen Bonds on The Physical Properties of Substances (5)

The boiling point of substances will become high

Effect of Hydrogen Bonds on The Physical Properties of Substances (6)

Molecules like chlorine, Cl2 which do not form hydrogen bonds have lower boiling point compared to ethanol

Effect of Hydrogen Bonds on The Physical Properties of ethanol, C2H5OH (1)

Ethanol, C2H5OH is also soluble in water

Effect of Hydrogen Bonds on The Physical Properties of ethanol, C2H5OH (2)

The solubility of ethanol, C2H5OH in water is due to the formation of hydrogen bonds between the ethanol molecule, C2H5OH and water molecule, H2O

Solubility of ethanol, C2H5OH in water, H2O (1)

Ethanol, C2H5OH consists of hydrogen atoms, H that form covalent bonds with oxygen atoms, O

Solubility of ethanol, C2H5OH in water, H2O (2)

The oxygen atom, O in ethanol molecule, C2H5OH can form a hydrogen bond with the hydrogen atom, H from water molecule, H2O

Solubility of ethanol, C2H5OH in water, H2O (3)

The hydrogen atom, H in ethanol molecule, C2H5OH can also form a hydrogen bond with the oxygen atom, O from water molecule, H2O

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