Anonymous

Question description

The effect of temperature on the rate of a reaction was studied and the following data obtained:

 k (s-1) T (°C) 1.91×10-4 5 2.25×10-4 7 3.07×10-4 11 3.58×10-4 13 4.84×10-4 17 7.49×10-4 23 1.06×10-3 28 1.22×10-3 30

It is known that the variation of the rate constant k with the absolute temperature T is described by the Arrhenius equation:

 k = A exp [( −Ea )/(RT)]

where Ea is the activation energy, R is the universal gas constant and A is the pre-exponential factor (units of the rate constant). Taking the natural logarithm of both sides affords:

 ln k = ln A − Ea RT

For a plot of y = ln k versus x = 1/T, calculate the slope of the best straight line using linear regression.

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