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la 5

clc
clear all
t=[293 300 320 340 360 380 400]
k=[8.53*10^-5 19.1*10^-5 1.56*10^-3 0.01 0.0522 0.2284 0.8631]


y=1.98*t.*log(k)
x=1.98*t
plot(x,y)
sol=polyfit(x,y,1)
z=exp(sol(1))
e=sol(2)
y1=1.98*t*log(z)-e
hold on
plot(x,y1,'o')