Rate constant for first order reaction is,
kt = In\(\Big(\frac{[A_0]}{[A]}\Big)\)
kt = In [A0] – In [A]
In[A] = In [A0] – kty = c + mx
If we follow the reaction by measuring the concentration of the reactants at regular time interval ‘t’ , a plot of ln[A] against ‘t’ yields a straight line with a negative slope. From this, the rate constant is calculated.
