If the potential energy between two molecules is given by U = $ - {A \over {{r^6}}} + {B \over {{r^{12}}}}$, then at equilibrium, separation between molecules, and the potential energy are :

Question

If the potential energy between two molecules is given by
U = $ - {A \over {{r^6}}} + {B \over {{r^{12}}}}$,
then at equilibrium, separation between molecules, and the potential energy are :

${\left( {{{2B} \over A}} \right)^{1/6}}$, $ - {{{A^2}} \over {4B}}$

${\left( {{{2B} \over A}} \right)^{1/6}}, - {{{A^2}} \over {2B}}$

${\left( {{B \over A}} \right)^{1/6}},0$

${\left( {{B \over {2A}}} \right)^{1/6}}, - {{{A^2}} \over {2B}}$

Solution

Please login to view the detailed solution steps...

Go to DASH