The potential energy of two electric charges Q 1 and Q 2 in a vacuum is where
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where r12 is the distance between the charges and ε0 is a constant called the permittivity of a vacuum, equal to 8.854187817 à 1012 F m1 = 8.854187817 à 1012 C2 N1 m2. The potential energy of a hydrogen molecules is given by
where A and B represent the nuclei and 1 and 2 represent the electrons, and where the two indexes indicate the two particles whose interparticle distance is denoted. If a hydrogen molecule is placed so that the origin is midway between the two nuclei and the nuclei are on the z axis show that the inversion operator iÌ and the reflection operator ÏÌh do not change the potential energy if applied to the electrons but not to the nuclei.
Transcribed Image Text:
Q1Q2 4πε0Γ12 e2 4πε0Γ2 e2 e2 e2 Ξ ν. 4περΓΑΒ 4περΓ1Β ΑπερΓ1Α e2 4πε0Γ12 e? 4περΓ2Β
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We use the fact that the origin is midway between the nuclei Unde...View the full answer
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