Answer to Question #59805 in Physical Chemistry for OLA BALO

Question

which statement is true?

a-as temperature goes up, the solubility of solids goes up
b-as temperature goes up, the solubility of gases goes up
c-as temperature goes down, the solubility of solids goes up
d-more than one of these is true

Answer 1

a. as the temperature goes up, the solubility of solids goes up. Heating a solution of a solid makes it easier for the particles of solid to move between the solution and the solid phase. The Second Law predicts that they will shift to the more disordered, more highly dispersed, and therefore, more probably solution state. In rare cases, when the dissolution reaction is exothermic (heat is produced during the reaction), the solubility of the solid decreases with increase of temperature. But this is not very common.