Two ionic compounds have the thermodynamic data shown
CHEMISTRY · Single correct · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry
Problem
Two ionic compounds have the thermodynamic data shown.
Compound A: ΔH° = +5.0 kJ mol⁻¹, ΔS° = +10 J mol⁻¹ K⁻¹
Compound B: ΔH° = −15.0 kJ mol⁻¹, ΔS° = −40 J mol⁻¹ K⁻¹
A saturated solution containing both solids is cooled from 350 K to 300 K. Which compound is most likely to show an increase in solubility during the cooling?
(a) Compound A only
(b) Compound B only
(c) Both compounds A and B
(d) Neither compound A nor compound B