#1
In Arrhenius' equation:

ln(k) = Ea/RT + ln(A)

k = rate constant
Ea= activation energy
R= gas constant (8.314)
T= temperature in Kelvin
ln(A)= constant

So the only problem is...I don't know what to substitute in for ln(A). Is it a number that never changes like R, or how do I know what ln(A) is?
IN/ RAINBOWS
IN RAIN/BOWS
IN RAINBOW/S
IN RAINBOWS/
IN RAIN_BOWS
RA D IOHEA _D
_RAD IO HEA D