Scelta multipla
Which of the following statements about catalysts is correct?
138
views
15. Chemical Kinetics
Catalyst
Scelta multipla
Which of the following best describes the role of a catalyst in a chemical reaction?
A
It raises the activation energy, making the reaction slower.
B
It speeds up chemical reactions by lowering the activation energy.
C
It increases the equilibrium constant of the reaction.
D
It is consumed during the reaction and becomes part of the products.
Guida verificata passo dopo passo1
Understand that a catalyst is a substance that affects the rate of a chemical reaction without being consumed in the process.
Recall that the activation energy is the minimum energy required for reactants to transform into products during a reaction.
Recognize that a catalyst works by providing an alternative reaction pathway with a lower activation energy, which increases the reaction rate.
Note that a catalyst does not change the equilibrium constant of the reaction; it only helps the system reach equilibrium faster.
Remember that a catalyst is not consumed or permanently altered during the reaction, so it does not become part of the products.
Video correlati
Pratica correlata
