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A positive unit charge is at a distance of 200 pm from a molecule of hydrochloric acid. Calculate the corresponding potential energy in kJ / mol and the maximum force.

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Problem 3: A 1.2 g wire has a density of 2.7 g/cm3 and a resistivity of 2.7 × 10−8 Ωm. The wire has a resistance of 15 Ω. a) How long is the wire? b) The wire is made up of atoms with valence 1 and molar mass 26.98 g/mol. What is the drift speed of the electrons when there is a voltage drop of 30 V across the wire?
Question 20 A 8 A.h lithium-ion cell is charged at 2C (units of C-rate are h¹) from 0% state of charge to 67% state of charge. The cell has a constant internal resistance of 0.01 Q and reversible (entropic heating) is assumed to be negligible. How much heat energy is generated. In the lithium-ion cell as a by-product of this charge process? Give your answer as a positive value in joules (), to the nearest integer.
An insulating belt moves at speed 30 m/s and has a width of 50 cm. It carries charge into an experimental device at a rate corresponding to 100 mA.What is the surface charge density on the belt?