Thermodynamics Solutions: #20
20.* (1994 F 7) Ozone decomposes to oxygen. DH for this reaction is negative; what is the sign of DS for this reaction? A chemical engineer "retired" into management wanted to discover a chemical catalyst to convert O2 into O3. What advice would you give him? Explain. decomposition of O3 => 2O3 --> 3O2 DH = neg., DS = pos. reverse reaction will have positive DG --> catalyst cannot affect thermodynamics --> he's barking up the wrong tree! |