15 Questions
What is the primary effect of a catalyst on a chemical reaction?
It lowers the activation energy barrier
Which of the following statements is true about catalysis?
Catalysis lowers the activation energy barrier for the reaction
What does a catalyst not affect in a chemical reaction?
The equilibrium constant of the reaction
How does a catalyst affect the rate of reaction?
It increases the rate of reaction by lowering the activation energy barrier
What is the relationship between the activation energy barrier and the rate of reaction?
A higher activation energy barrier means a slower rate of reaction
What is the effect of a catalyst on the composition of the equilibrium mixture?
It has no effect
What is the role of a catalyst in a reversible reaction?
To increase the rate of the forward reaction
What happens to the rate of reaction when a catalyst is added?
It increases
What is the effect of a catalyst on the equilibrium constant of a reversible reaction?
It has no effect on the equilibrium constant
Why does a catalyst decrease the time taken to reach equilibrium?
Because it increases the rate of the forward reaction
At what temperature range is the catalyst bed kept?
460 - 550 ºC
What is the purpose of the heating coil in the process?
To heat the gases to the desired temperature
What condition is required to maintain the catalyst bed at the desired temperature?
High pressure
What is the likely role of the catalyst bed in the process?
To speed up the reaction
What would be the expected result if the catalyst bed was not pre-heated?
The reaction would occur at a slower rate
Test your understanding of Le Châtelier's Principle and the effect of catalysts on chemical reactions, including activation energy and reaction rates.
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