Explain the relation between time of equilibrium and thermodynamics.

1.	Explain the relation between time of equilibrium and thermodynamics.
Answer» Solution :The value of `K_c` gives the proportion of PRODUCT and reactant at EQUILIBRIUM, but the value `K_c` does not change with rate of reaction. The value of `K_c` can.t explain the time when the equilibrium is attain, it can be explain by thermodynamics. By USE of Gibbs force ENERGY spontaneity of reaction can be predicted. (i) `DeltaG` is negative (`DeltaG lt 0`) : `DeltaG` is negative, then the reaction is spontaneous. Reaction proceed in forward direction and product will form from reactant equilibrium energy decreases. (ii) `Delta`G is positive (`DeltaG gt 0`) : `DeltaG` is positive, then reaction is considered non-spontaneous. So, forward reaction will not take place, So, product convert in to reactant. (iii) `DeltaG = 0`: If `DeltaG = 0` than the reaction is in equilibrium. The reaction will not be continue in any direction. There will be not much energy left for this PROCESS.

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