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clear
//
//
//
//Variable declaration
KB=1.38*10**-23 //boltzmann constant
e=1.602*10**-19 //charge(c)
rho1=4.5
rho2=2.0
T1=293 //temperature(K)
T2=305 //temperature(K)
//Calculation
Eg=2*KB*log(rho1/rho2)/((1/T1)-(1/T2)) //energy gap(J)
Eg=Eg/e //energy gap(eV)
//Result
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