[alex021095]

A + B2  ≒ AB + B  Ea(fwd)=80kJ,  Ea(rev)=25kJ

I dont know how to explain that will the rate of reaction between A and B2
increase more than between AB and B if the temperature is increased?

could any one help me ~ ~?

[sjb]

Are you aware of the Arrhenius relationship? (http://en.wikipedia.org/w/index.php?title=Arrhenius_equation&oldid=258252405)

S

[alex021095]

I only know that the molecules have higher collision energy when the temperature is increased.Then the rate of reaction will increasing, but i don't know whether the rate of reaction of A and B2 icrease more than between AB and B.

[jset]

I would think that the reverse reaction will have an increased reaction rate with an increase in temperature because the energy barrier (Ea) of the reverse reaction is lower than the Ea of the forward reaction. Therefore, the reverse reaction will have a much higher rate than the forward.

How does that sound?

[alex021095]

However, the answer key of this question is likely increased more than AB and B by A and B2 in text book~....I'm not sure as i have lost this book.

Would anyone have any ideas to explain it~ ~?