Asked Mar 6, 2020

(a) Is the dissociation of fluorine molecules into atomic
fluorine, F2(g)⇌ 2 F(g) an exothermic or endothermic
process? (b) If the temperature is raised by 100 K, does
the equilibrium constant for this reaction increase or decrease? (c) If the temperature is raised by 100 K, does
the forward rate constant kf increase by a larger or smaller
amount than the reverse rate constant kr?


Expert Answer

Step 1

(a) Some energy is needed for the dissociation of a molecule to dissociate into atoms present in the molecule. As the molecule of fluorine is getting dissociated, the energy is required to carry out the given reaction because of the high stability of the fluorine molecule in comparison to atomic fluorine. Hence, the dissociation of fluorine molecules to produce atomic fluorine is an endothermic process.

Step 2

(b) The equilibrium constant for an endothermic process increases on increasing temperature because the energy is required for an endothermic process and increasing tem...

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