Carol E. answered • 07/21/14

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Chemistry is my specialty!!

Arsineh,

The relationship between ΔG

^{0}(the free energy change) and K (the equilibrium constant) is expressed by the equationΔG

^{0 }= -RTlnK.Whether ΔG

^{0 }is negative or positive indicates that the reaction is spontaneous or non-spontaneous, respectively. In order for ΔG to be negative, then lnK must be positive, since both R and T are positive numbers. When ΔG is positive, then lnK must be negative. In order for lnK to be negative, K < 1.