Задача 31257.

To determine how many times the Hall coefficient of copper is greater than that of aluminum, if it is known that aluminum per atom, on average, two free electrons, and copper 0.8 free electrons. Densities of copper and aluminum are respectively 8.93 and 2.7 g / cm ^ 3.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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