Well, this is not very difficult if you see the thingiii) But from my grap i need to estimate the values of k and n. (from my graph the gradient is 0.67 and the intercept it 0.275) I need help to Solve k and n.
I'm not sure whether you have log(R) in the ordinates. Nevermind...If it's not this way, express log(T) in terms of log(R).
In a function y=ax+b, a is the gradient and b the intercept.
So can you conclude ?