In the graph drawn between log K and 1/T, intercept equals to

Effect of temperature on rate of reaction is given by ArrheniusK = Rate constant of a reaction.A = pre exponential factor, AA = PZWhere P = steric factor          Z = Collision frequencyEa = Activation energy of the reactionT = Absolute temperatureAs T increases, K increases exponentially  Taking natural logarithm on both sides  y = c - mxstraight line with positive 'y'-intercept and negative slope.