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If there were two isomers of triglycerides B, one having "hydrogen" in CIS form and the other in the TRANS form, which would likely have the higher melting point? Why?
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That in the trans form will likely have a lower melting point as the triglycerides in the TRANS form can align better. The good example is oleic fatty acid with fatty acids in CIS form with melting point of ~16C and elaidic fatty acids with TRANS form and a melting point of ~43C.
The reason for this is the trans form of an unsaturated fatty acid does not fit together nearly as well as the CIS form.
Updated: Saturday, December 29, 2007. |
