12/7/2016 11:55 PM ol 100 Gradebook. Print calculator Periodic Table Question 1

Question

12/7/2016 11:55 PM ol 100 Gradebook. Print calculator Periodic Table Question 1 of 2 Map Ab Sapling Learning this question was written by John Pollard at University of Arizona Go to http://www.cbc and open the simulation. Play around with the simulation (meaning, try working all the controls and observe what happens). Now, which of the following statements are true (more than 1 can be true)? The reaction is faster when the activation energy is set to a higher value. The reaction is faster when more reactants are present. The reaction is faster when the temperature is lower. The reaction is faster when the volume is smaller.

Explanation / Answer

a) False, The reaction is faster when activation energy is set to LOWER values ( since it is the enrgy required to start reaction mechanism)

b)

TRUE, When more reactants is present, the reaction goes faster

c)

Increasing T increase the rate, this is FALSE

d)

when Volumme is lower, they collide faster, therefore the reaction is faster, this is TRUE

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