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3 years ago

What happens to the entropy in the reaction I^2(s) ►I^2(g)?

Chemistry

1 answer:

swat323 years ago

6 0

Answer:

D. Entropy increases in the reaction.

Explanation:

Entropy is the degree of randomness in a system. In the reaction given we go from a solid to a gas, therefore there is an increase in the randomness. This means there is an increase in entropy.

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daser333 [38]

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3 years ago

What is the significance of "Er" in the diagram?

Drupady [299]

Answer:

The significance of "Er" in the diagram is :

B.) Threshold energy for reaction

Explanation:

Threshold energy : It is total amount of energy required by the reactant molecule to reach the transition state .

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Activation Energy = Threshold Energy - Average Kinetic Energy

This means Activation energy decreases on increasing kinetic energy

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Catalyst also reduces the Activation energy.

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The given figure shows that the threshold energy decreases on increasing the temperature

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What main criterion determines major divisions in the geologic time scale?

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