Question

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

O2 (g) --> O2 (aq)

is it +ΔS or -ΔS

Answer 1

ΔS is negative

Step-by-step explanation:

Answer 2

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)`.