R⟶P is a first order reaction. For this reaction a graph of ln[R] (on y-axis) and time (on x axis) gave a straight line with negative slope. The intercept on y-axis is equal to ( k= rate constant)
Given, R→P (first order) Integrated rate law for first order is given by the equation, ln[R]=ln[R]0−kt Comparing with y=mx+c ln[R]=−kt+ln[R]0 Slope =−k (negative) Intercept on y-axis =ln[R]0