helpIn $1998$ scientists using a special type of electron microscope were able to measure

the force needed to break a single chemical bond. If $2\mathrm{.}0{10}^{-9}N$ was needed to

break a C$-$Si bond, estimate the bond enthalpy in $k\frac{J}{m}ol.$ Assume that the bond had

to be stretched by $2(2{10}^{-10}(m))$ before it is broken.

$(5$ marks$)$