Place H2O, CH4, H2, and HBr in order of increasing boiling point and explain ordering in...

Place H2O, CH4, H2, and HBr in order of increasing boiling point and explain ordering in terms of intermolecular forces/bonding and what intermolecular forces each contains.

Expert Solution

The boiling point of a compound depends on its intermolecular forces. The stronger the intermolecular forces, higher is the boiling point. The intermolecular forces in the given compounds are :

H2, CH4 - dispersion forces

HBr - dipole-dipole interaction

H2O - hydrogen bonding

Here, Hydrogen bonding is stronger than dipole-dipole interaction which is stronger than dispersion forces. Also, as CH4 is bigger than H2, it exerts greater dispersion forces.

The order is : H2<CH4<HBr<H2O

queen_honey_blossom answered 2 years ago

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