Q. 3

Activation energy A. determining the rate constant at standard temperature.

B. determining the rate constants at two temperatures.

C. determining probability of collision.

D. using catalyst.

Answer :

Taking ln on both sides give: ln k= -EA/RT + lnA

The above equation has EA as activation energy and k as the rate constant.

The equation can be changed to a line equation i.e. y=mx+c, by taking log on both sides.

For two values of k at different temperatures we can get the value of EA from above Equation.

Thus option (ii) is correct.

Other options do not give an equation or values for a graph that can be plotted to find the value EA.

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