Reaction Rates and Equilibrium — Test

Question 1

Which statement best describes the reaction pathway graph for an exothermic reaction but not an endothermic reaction?

Revolt · Accepted Answer

The reactants are higher in energy than the products.

Question 2

What happens as the activation energy increases?

Revolt · Accepted Answer

The reaction begins to slow down.

Question 3

A reaction occurs when solid X is placed into solution Y. As a result, the temperature of the new solution increases by 3 times degree C The temperature rises another 2 times degree C when more of solid X is added to the solution. What does this indicate about the effect of adding more solid?

Revolt · Accepted Answer

It increased the number of molecular collisions.

Question 4

Which method would provide evidence to support the inference that this is an exothermic reaction?

Revolt · Accepted Answer

subtract cap e from cap d

Question 5

Which is true about the potential energy of the reactants in this reaction pathway?

Revolt · Accepted Answer

It is greater than the potential energy of the products.

Reaction Rates and Equilibrium — Test Answers

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