Question #5c22f

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anor277 Share
Aug 3, 2017

Answer:

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.

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