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The number of vacancies in some hypothetical metal increases by a factor of 5 when the temperature is increased from 955C to 1270C. Calculate the

The number of vacancies in some hypothetical metal increases by a factor of 5 when the temperature is increased from 955°C to 1270°C. Calculate the energy for vacancy formation (in Jimol assuming that the density of the metal remains the same over this temperature range.

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