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When a stable diatomic molecule spontaneously forms from its constituent atoms, what are the signs of...

When a stable diatomic molecule spontaneously forms from its constituent atoms, what are the signs of ΔH°, ΔS°, and ΔG°?

+   +   -

+   -   +

+   -   -

-   +   +

-   +   -

-   -   -

-   -   +

+  +   +

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Answer #1

Since the reaction is spontaneous,

ΔG° is negative

Here atom is changing to molecule.

So, entropy is decreasing

ΔS° is negative

When atom combine to form molecule, heat is released

So,

ΔH° is negative

Answer: -, -, -

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