Find the equilibrium constant, Kw, at 25 degrees celsius and 40 degrees celsius for the following reaction: Is the reaction exothermic or endothermic

H2O<--> H+ + OH-

Species: H+, OH-, H2O

Delta H degree Fahrenheit (kcal/mol): 0, -54.957, -68.3174

Delta G degree Fahrenheit (kcal/mol): 0, -32.595, -56.690