Why is the boiling point of GeH4 higher than SiH4?

Answer 1

Boiling point of SiCl4 is lower than expected. Its chlorine atoms have higher negative charge due to lower electro negativity of silicon. Therefore the molecules repel each other. this results in lower b.p of SiCl4

Answer 2

Gernanium has an atomic number of 32 while silicon 14. This means GeH4 has more electrons than SiH4, therefore GeH4 has stronger Van der Waals/London forces (types of intermolecular forces) thus modern energy needed to break these forces; higher boiling point.

Answer 3

Boiling point depends on the strength of the bond exist between two atoms...........here the bond strength of C-Cl is more than Si-Cl bond and also the size of the C is less than Si........... because Si can use d orbital electrons to make a bond with Cl,,,,,but C utilises p orbitals which are more closer to the nucleous attraction...........To bond brekage in CCl4 take higher energy than SiCl4

Answer 4

CCl4 has many more electrons in the molecule, so London Dispersion forces between molecules are stronger.

Answer 5

because the intermolecular force among the Cl2 molecules is bigger than intermocelular force amog F2.........and Cl2 is bigger than F2, this influence too

Answer 6

Its less stable.

Answer 7

CCl4