Question

The N-N bond energy is difficult to measure. Given the values of 190 kJ/mol for the N-Cl bond energy and 240 kJ/mol for the Cl-Cl bond energy, determine the maximum de Broglie wavelength of an electron capable of breaking the N-N bond.

Answer 1

after u got the energy for N-N bond. U have to calculate lambda wavelength that too de broglie's. 0.5mv squared is the kinetic energy of the electron. So convert half mv squared to energy momentum equation. that should get u to this. P squared is equal to 2*mass of electron*Energy of the N-N bond to be broken. This P valve the momentum is substituted in the lambda formula i.e., lambda = h/P i.e., planck's constant divided by the momentum u have calculated. This should give u the answer. Try it.