Chemistry

Problem

The conversion of gaseous atoms K and F to

K^+

and

F^-

absorbs 0.85 eV of energy. If the IE and

(\Delta_{eg}H^\circ)

of K and F have magnitudes in the ratio 7:6, what is the approximate electron gain enthalpy

(\Delta_{eg}H^\circ)

of fluorine (Magnitude only, neglecting sign)