[kimi85]

the reaction: A + B -->  2C based on the following data:

expt #         [A]o                  o                      initial rate reaction
1                 0.40                   0.10                       3.5 x 103
2                 0.20                   0.10                       1.8 x 103
3                 0.20                   0.50

[kimi85]

the reaction: A + B -->  2C based on the following data:

expt #      [A]o    _o      initial rate reaction
1                 0.40                   0.10             3.5 x 10³
2                 0.20                   0.10              1.8 x 10³
3                 0.20                   0.50              4.5 x 10³

What's the rate law?
What I know is A is in th first order
But for B I don't know.

Thank you

[Yggdrasil]

Compare reactions 2 and 3.  By what factor does [ B ] change?  By what factor does the rate change?

[kimi85]

for B, it changes by a factor 0f 5 for the concentration and the rate it changes for a factor of 2.5

Is the order 1/2 for B?

[Yggdrasil]

Yup.  It seems strange, but not all reaction orders are whole numbers.

[kimi85]

thank you very much. ;