J JNew Full Member 10+ Year Member 15+ Year Member Joined Jun 6, 2007 Messages 81 Reaction score 0 Points 0 Non-Student Jun 10, 2010 #1 Advertisement - Members don't see this ad Don't really understand why if Kw got smaller, the reaction must be endothermic. Anybody?
Advertisement - Members don't see this ad Don't really understand why if Kw got smaller, the reaction must be endothermic. Anybody?
C Chemwiz New Member 10+ Year Member Joined May 31, 2010 Messages 5 Reaction score 0 Points 0 Jun 10, 2010 #2 JNew said: Don't really understand why if Kw got smaller, the reaction must be endothermic. Anybody? Click to expand... We consider "heat" as a part of reactants. Since we're decreasing the temperature, this equivalents to removing heat from reactants. By Le Chatelier's Principle, rxn favors the formation of reactants b/c heat is removed, so Kw decreases. Upvote 0 Downvote
JNew said: Don't really understand why if Kw got smaller, the reaction must be endothermic. Anybody? Click to expand... We consider "heat" as a part of reactants. Since we're decreasing the temperature, this equivalents to removing heat from reactants. By Le Chatelier's Principle, rxn favors the formation of reactants b/c heat is removed, so Kw decreases.
