Indicate whether each change will result in an increase or decrease in the rate of reaction.
Increase in rate of reaction
Decrease in rate of reaction
No change
Concentration of reactants increase # An inert gas is added to the system Activation energy drops
Temperature of the system increases The molecular rate of collisions decreases.
The activation energy gets higher.
Frequency of collisions goes up
A catalyst is added to the system
Orientation of molecules is not favorable.