Question

Which of the following best describes H2(g) + Cl2(g) → 2HCl(9), AH = -184.6
kJ/mol?
A. The reaction requires heat.
B. The reaction has no activation energy.
C. The reaction is endothermic.
D. The reaction produces heat.
I’ll give ya brainliest

Answer 1

Answer:

D

Explanation:

ap

Answer 2

The statement that best describes the reaction $\rm H_2(g) + Cl_2(g) \rightarrow 2HCl(9), AH = -184.6$ is the reaction has no activation energy.

What is activation energy?

Activation energy is the small amount of energy which is required to start a reaction.

This is the kinetic energy of the reactant molecules, which helps them to collide.

High activation energy means the reaction will be slow.

Low activation energy means a high rate of energy.

Thus, the correct option is B.

Learn more about activation energy

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