condensation & dehydration (1 Viewer)

[lilchezza]

Could someone please explain the difference between a condensation and a dehydration reaction ... thanks..

 

[Harry Seacombe]

A condensation reaction is a polymerisation reaction where two or more monomer units join together and a small molecule, often water, is eliminated. An example is the polymerisation of glucose, to make cellulose and water.

A dehydration reaction is a reaction where water is removed from a compound. For example, ethanol is dehydrated by heating it with concentrated sulphuric acid which acts as a catalyst, forming ethylene and water. The reverse reaction is called hydration.

 

[kittikat]

*thumbs up* good explanation there

 

[Sparcod]

Examples:
Condensation- glucose monomers joing on to become cellulose.
Dehydration- water pulled out of ethanol as ehylene forms.