Question

How does Avogadro's Law apply to the reduction of ethylene and acetylene?

Answer 1

For the complete hydrogenation of ethylene or acetylene..........?

Explanation:

`H_2C=CH_2 + H_2 rarr H_3C-CH_3`

`H_2C-=CH_2 + 2H_2 rarr H_3C-CH_3`

Given Avogadro's law, equal volumes of gases contain equal numbers of molecules under the same temperature and pressure, i.e. `Vpropn`.

And so for the hydrogenation of ethylene we need a `0.25*dm^3` volume of dihydrogen, and for the hydrogenation of acetylene, we need a `0.50*dm^3` volume of dihydrogen.