what is the difference between a conformational isomer and a configurational isomer?

Answer 1

Here is a fairly good site that describes different kinds of isomers. I hope this helps. http://www.slc.ac.nz/WorkshopClub/Workshop/isomers-thesamebutdifferenttext.htm

Answer 2

Configurational isomers are enantiomeric whereas the conformational isomers are shown by specific rotation meaning that they cannot be resolved