Chemistry Practice Problems Entropy Practice Problems Solution: Estimate whether the entropy of the system increas...

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Solution: Estimate whether the entropy of the system increases or decreases during each process.(a) photodissociation of O2 (g),(b) formation of ozone from oxygen molecules and oxygen atoms,(c) diffusion of CFCs into the stratosphere,(d) desalination of water by reverse osmosis.

Problem

Estimate whether the entropy of the system increases or decreases during each process.
(a) photodissociation of O2 (g),
(b) formation of ozone from oxygen molecules and oxygen atoms,
(c) diffusion of CFCs into the stratosphere,
(d) desalination of water by reverse osmosis.

Solution

In this problem, we are asked whether the entropy of the system increases or decreases during each of the given processes


Recall that entropy is the degree of chaos or disorder of a system

For a given process, entropy (ΔS) will either increase or decrease.


We are given the following processes: 

(a) photodissociation of O2 (g),
(b) formation of ozone from oxygen molecules and oxygen atoms,
(c) diffusion of CFCs into the stratosphere,
(d) desalination of water by reverse osmosis.

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