1) Los compuestos binarios de hidrogeno de los elementos del grupo 4A y sus puntos de ebullición son: CH4, –162°C; SiH4, –112°C; GeH4, –88°C y SnH4, –52°C. Explique el incremento de los puntos de ebullición desde CH4 hasta SnH4.

Increasing London dispersion forces  

Explanation:

The graph below shows that the boiling points increase smoothly as you go from CH₄ to PbH₄, that is, as the molecular mass increases.

The only intermolecular forces between the molecules are London dispersion forces.

These forces increase with increasing molecular mass because there more electrons that can be temporarily on one side of the molecule to induce a temporary dipole in a nearby molecule.

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