How does decrease in surface area of branched alcohols decrease vander walls forces?

Asked by Girijeshpandey.rjil | 23rd Apr, 2018, 07:16: PM

Expert Answer:

Let us understand with an example,
2,2 dimethyl propane is a compact, almost spherical molecule whereas, pentane is long and floppier so will experience more forces between molecules.
In above structures, you can see that n-pentane have larger surface area than 2,2 dimethylpropane, which means the Van der Waal's forces of attraction are more in case of n-pentane than 2,2 dimethyl propane.

Answered by Ramandeep | 24th Apr, 2018, 10:38: AM