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iren2701 [21]
3 years ago
10

In order for a process to be spontaneous, Multiple Choice the entropy of the surroundings must increase. the entropy of the surr

oundings must decrease. the entropy of the system must increase. the entropy change of the surroundings plus the entropy change of the system must be positive. the entropy of the universe must decrease.
Chemistry
1 answer:
Crazy boy [7]3 years ago
8 0

Answer:

The correct answer is entropy change of the surrounding plus the entropy change of the system must be positive.

Explanation:

The term entropy is a state function.Entropy can be defined as the disorder or randomness of the molecules in a system.

 A spontaneous reaction is a type of reaction which deals with the release of free energy.The change of free energy in case of spontaneous reaction is always negative.

 According to the second law of thermodynamics a spontaneous reaction will occur in a system if the total entropy of both  system and surrounding increases during the reaction.

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Answer: 1.8 moles Fe and 2.7 moles CO_2 are produced.

Explanation:

The balanced chemical reaction is:

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3 moles of CO require 1 mole of Fe_2O_3

Thus 2.7 moles of CO will require=\frac{1}{3}\times 2.7=0.9moles  of Fe_2O_3

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