The energy required to split apart dichlorine according to the equation is 3.99 × 10-19 j/molecule. cl2(g) → 2cl(g) calculate the frequency (hz) of the photon that can dissociate dichlorine. express answer in scientific notation.

The frequency of the photon that can dissociate dichlorine is 6.02×10¹⁴ Hz

Explanation:

The energy of a photon is given by the equation:

E=h·f

E=3.99×10⁻¹⁹ J/molecule

h (Planck's constant)=6.626×10⁻³⁴ m²·kg/s

∴ f=E/h

=6.02×10¹⁴ s⁻¹= 6.02×10¹⁴ Hz

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.