Question

The number of vacancies in some hypothetical metal increases by a factor of 6 when the temperature is increased from 1040 ˚C to 1280 ˚C. Calculate the energy for vacancy formation (in J/mol) assuming that the density of the metal remains the same over this temperature range.

Answer 1

Solution

Solution K2 Botrmann Costont 1.3807 10 to solve this question we note that the Boltzman equation for vibrational states State where No = population of the lower Energy N,= 1 n upper Energy - State. DE = DE > Energy difference Ka Boltzmann egn Ta Kelvin Temp in (10 70*c+273°c) Govercome to answ er is) → 13434 n izsoc+27sic Loss 3*) eck *1553 elkx 1343) szeretning) * Ce mou) en(6) = [no ] + [vne osn] Qu= In (6) [ulisa'] + [ator] are Kor 1290.412) 25 !.3807 x 10 * 1290.412

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