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.

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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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Problem Details

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.