- #1

Diamond101

- 25

- 0

## Homework Statement

Calculate activation energy and pre exponential factor, i need help with the pre exponential factor

## Homework Equations

Temperature °C

-20 = 253 k

-10= 263

0=273

10=283

20=293

Rate const. s-1

1.15

3.85

11.3

28.7

74.0

## The Attempt at a Solution

i already plotted the graph on excel . i got ea= -(r * gradient)= -8.314*0.7703*10^4) =64 kj/mol

Pre exponential factor= E^(LN k + ea/RT) ^=E^(4.3+ 64/ 8.314*293 K) =?