Question

KNO3(s)= K+(aq) +NO3-(aq)

Ksp=[K+(aq)][NO3-(aq)]

Equation of line= -0.0003x+0.0039

Volume total(L)	T (°C)	[KNO3] (M)	Ksp	ln Ksp	1/T (1/K)
0.0250	67.20	6.57	43.138624	3.764419	0.002938
0.0292	56.00	5.62	31.621364	3.453833	0.003038
0.0334	46.70	4.92	24.168705	3.185059	0.003126
0.0376	39.90	4.37	19.070875	2.948162	0.003194
0.0418	36.80	3.93	15.430988	2.736378	0.003226
0.0461	33.30	3.56	12.686577	2.540544	0.003263
0.0510	29.80	3.22	10.365875	2.338519	0.003301

a. The equation can be represented in the following form: ln Ksp = -deltaH/R ( 1/T ) + deltaS/R . Based on your equation, calculate values of Delta H and Delta S and include units. Provide a molecular level explanation to account for the signs of DH and DS.

Answer 1