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Which of the following reactions would result in decreased entropy?
OA. PC15(g) → PC1₂(g) + Cl₂(g)
OB. MgCl₂(s) → Mg2+ (aq) + 2Cl(aq)
C. 2CH4(g) + 302(g) → 2CO(g) + 4H₂O(g)
D. N₂(g) + 3H₂(g) → 2NH3(g)

Respuesta :

mickymike92

The reaction that will result in a decrease in entropy is:

  • N₂(g) + 3H₂(g) → 2NH3(g).

What is entropy of a substance?

Entropy is a measure of the degree of randomness of a substance.

An increase in entropy means an increase in disorderliness whereas a decrease in entropy means an increase in orderliness.

A change of state from gas to liquid or gas to solid or liquid to solid means a decrease in entropy value.

Also, a decrease in the moles of a gas after a reaction means a decrease in entropy.

Therefore, the reaction that will result in a decrease in entropy is:

N₂(g) + 3H₂(g) → 2NH3(g).

Learn more about entropy at: https://brainly.com/question/419265

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