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Calculate the activation energy needed to create a single vacancy in aluminium, given:

T= 500 Celsius

Density (500 Celsius) = 2.62 gr/cm^{3}

n = 7.57e23 m^{-3}

Mw (Al) = 26.98 gr/mol

I know these Formulas:

n = N*exp (Q/kT) (k = boltzmann's constant)

N = Na*Density/Mw (Na = avogardo's number)

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# How do you calculate activation energy per vacancy?

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