So these one are clearly longer than this particular case. And because of the difference in length, we see that in this particular case we have many more interactions, intermolecular interactions. To be more specific, we have many more London dispersion forces that can potentially form in this case than in this case. And what that means is if we have a membrane that consists of these fatty acids and one that consists of these fatty acids, the overall strength of the intermolecular interactions in this particular membrane will be greater than in this particular case. And so in such a case, the membrane will be more rigid and will have a higher melting temperature. So longer fatty acids can form more lung dispersion forces than shorter ones.