Compute the work done to stretch a protein, assuming that the protein extension can be

represented by the wormlike chain model below relating force and extension:

$F=(\frac{k_{B}T}{L_p})(0\mathrm{.}25(1-\frac{x}{L}{)}^{-2}-0\mathrm{.}25+\frac{x}{L})$

Where $k_B$ is Boltzmann's constant and $L_Q$ is the persistence length.$|$