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clear
//
//
//
//Variable declaration
T1=773; //temperature(K)
T2=1273; //temperature(K)
n=1*10^-10; //fraction of vacancy sites
//Calculations
X=(T1*log(n)/T2);
x=exp(X); //fraction of vacancy sites at 1000 C
//Result
printf("\n fraction of vacancy sites at 1000 C is %0.4f *10^-7",x*10^7)
printf("\n answer varies due to rounding off errors")
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