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spayn [35]
3 years ago
12

The activation energy of a reaction going on its own is 20 kj. If the reaction was treated with a catalyst, which would most lik

ely represent the amount of energy needed to start a reaction?
15 kj
20 kj
25 kj
30kj
Physics
2 answers:
storchak [24]3 years ago
7 0

Answer:

15 kJ

Explanation:

We need to know the following;

what is activation energy?

  • Activation energy is the minimum energy required by reactants for a chemical reaction to take place.

What are catalysts?

  • Catalysts are molecules or substances that speed up the rate of a chemical reaction.
  • In other words, catalysts increase the speed at which products are formed from reactants.

How do catalysts speed up reactions?

  • Catalysts speed the rate of chemical reactions by lowering the activation energy of the reactants.
  • When activation energy is lowered, reactants require less energy for the reaction to occur which easily achieved making the reaction proceed faster.
  • Therefore, in presence of a catalyst, the new activation energy should be lower than the initial value of activation energy.
Arte-miy333 [17]3 years ago
5 0

Answer:

A 15kj

Explanation:

just did the assignment

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Answer:

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Explanation:

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