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Given are H2 and He. What ? This Both Substances has The higher boiling point?
Solution: Es Come on . It 's just … VdW-KrFrequently before, The Number of The Electrons is in each case 2 Electrons. There you go. The Number of The Electrons Right now. is (or for Other Examples very Similarly would be) must in This Case in point on The Surface of the H2 Responsibility. He One prediction made.
In principle Applicable Yes , it is ., that The Diameters (Responsibility. Radius) One of them Atoms In the PSE of Left side after on the right decreases, d.h. r(H) > r(He). This means that Applicable Of course. also the following:: Oberfläche(H2) > Surfaceche(He).
There you go. The Commission The Electrons Now on The Greater Surface It 's better . Distribute can and This means that The VdW-Strength Weaker will be, Applicable: Sdp(H2) > Sdp(He) . This experiment Confirmed also These Suspicion (Sdp(H2) = -253℃ Sdp(He) = -269℃
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