The gas-phase reaction of NO with F2 to form NOF and Fhas an activation energy of Ea = 6.3 kJ/mol. and a frequencyfactor of A = 6.0 x 108 M-1 s-1. The reaction isbelieved to be bimolecular:NO(g) + F2(g) ----> NOF(g) + F(g)(a) Calculate the rate constant at 100 °C. (b) Draw theLewis structures for the NO and the NOF molecules, giventhat the chemical formula for NOF is misleading becausethe nitrogen atom is actually the central atom inthe molecule. (c) Predict the shape for the NOF molecule.(d) Draw a possible transition state for the formation ofNOF, using dashed lines to indicate the weak bonds thatare beginning to form. (e) Suggest a reason for the low activationenergy for the reaction.
The gas-phase reaction of NO with F2 to form NOF and F
has an activation energy of Ea = 6.3 kJ/mol. and a frequency
factor of A = 6.0 x 108 M-1 s-1. The reaction is
believed to be bimolecular:
NO(g) + F2(g) ----> NOF(g) + F(g)
(a) Calculate the rate constant at 100 °C. (b) Draw the
Lewis structures for the NO and the NOF molecules, given
that the chemical formula for NOF is misleading because
the nitrogen atom is actually the central atom in
the molecule. (c) Predict the shape for the NOF molecule.
(d) Draw a possible transition state for the formation of
NOF, using dashed lines to indicate the weak bonds that
are beginning to form. (e) Suggest a reason for the low activation
energy for the reaction.
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