Most gases become less soluble in water as the temperature increases.What can be concluded about the signs of ΔH_soln and ΔS_soln in this case? A)ΔH_soln is negative and ΔS_soln is negative. B)ΔH_soln is negative and ΔS_soln is positive. C)ΔH_s_oln is positive and ΔS_soln is negative. D)ΔH_soln is positive and ΔS_soln is positive.

Question

Quizplus · Accepted Answer

The solubility of gases decreases with increasing temperature, indicating that the dissolution process is exothermic (ΔH_soln is negative). The decrease in solubility also suggests a decrease in disorder, meaning ΔS_soln is negative.

Most Gases Become Less Soluble in Water as the Temperature