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Given the chemical equation, predict the ΔS system for this change.

O2 (g) --> O2 (aq)

is it +ΔS or -ΔS

2 Answers

7 votes

Answer:

ΔS is negative

Step-by-step explanation:

User Homerman
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2 votes

Answer : The
\Delta S system for this change is, negative
(-\Delta S).

Explanation :

Entropy : It measure the randomness and the disorderedness of the system.

As we know that the entropy increases,
(+\Delta S) as we are moving from the solid state to liquid state and liquid state to gaseous state and the entropy decreases,
(-\Delta S) as we are moving from gaseous state to liquid state and liquid state to solid state.

The given reaction is,


O_2(g)\rightarrow O_2(aq)

In this reaction, the phase changes from gaseous state to liquid or aqueous state. That means the entropy of the system for this change will be negative.

Hence, the
\Delta S system for this change is, negative
(-\Delta S).

User Tsiki
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7.9k points