試題詳解

17. The equilibrium constant K for the dissociation reaction of a molecule X₂

 X_2(g) ←→ 2X_(g) 

was measured as a function of temperature (in Kelvin). A graph of ln K versus 1/T for this reaction gives a straight line with a slope of –1.352x10⁴ and an intercept of 15.59 K. The value of ∆S for this dissociation reaction is:
(A)1.875 J/K mol
(B)259.2 J/K mol
(C)32.4 J/K mol
(D)64.81 J/K mol
(E)129.6 J/K mol