MCQ
Energy of the electron in Bohr's orbit is equal to ?
- APotential energy only.
- BKinetic energy only.
- ✓Sum of potential and kinetic energy.
- Ddifference of kinetic and potential energy.
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$O(g) + e^- = O^-(g)$ $\Delta {H_{eg}} = - 142\,kJ\,mo{l^{ - 1}}$
$O^-(g) + e^- = O^{2-}(g)$ $\Delta {H_{eg}} = +844\,kJ\,mo{l^{ - 1}}$
This is because