The measured binding energy of KCl is 4.43 eV. Part A The binding energy of a KC

Question

The measured binding energy of KCl is 4.43 eV.

Part A

The binding energy of a KCl molecule is 5.13 eV by calculating the electrostatic potential energy when the K+and Cl ions are at their stable separation of 0.28 nm. Estimate the contribution to the binding energy of the repelling electron clouds at the equilibrium distance r0=0.28nm

Express your answer to two significant figures and include the appropriate units.

The measured binding energy of KCl is 4.43 eV.

Part A

The binding energy of a KCl molecule is 5.13 eV by calculating the electrostatic potential energy when the K+and Cl ions are at their stable separation of 0.28 nm. Estimate the contribution to the binding energy of the repelling electron clouds at the equilibrium distance r0=0.28nm

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

Binding energy BE=4.43 eV

so BE=-PE-PEcloud

4.43=-513-PEcloud

PEcloud=.0.7 eV

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