Homework Help: Chemistry

Posted by Anonymous on Thursday, December 20, 2007 at 4:01am.

Can someone please check the following answers for me...THANK YOU!

1)Raising the temperature of a reacting system increases the rate of reaction but does NOT increase the: NUMBER OF COLLSIONS

2)Activation energy is: AN ENERGY BARRIER BETWEEN REACTANTS AND PRODUCTS

3)A catalyst works by: LOWERING THE ACTIVATION ENGERY BARRIER

Chemistry - drwls, Thursday, December 20, 2007 at 8:24am
2 and 3 are correct. 1 is correct if you are discussing the reaction rate at constant pressure, but at constant volume the collision rate does increase slowly with temperature (in proportion to sqrt T)

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