## Spontaneous Rxn Involving Cl

$\Delta S = \frac{q_{rev}}{T}$

kshalbi
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### Spontaneous Rxn Involving Cl

How do you know that Cl2 (g)--->2Cl (g) is spontaneous only at high temperatures?

Chem_Mod
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### Re: Spontaneous Rxn Involving Cl

In terms of thermodynamics, its Gibbs free energy change would be negative only at high temperatures.

In empirical terms, a bottle of chlorine gas at room temperature does not spontaneously split into chlorine atoms.