The reaction rates of many spontaneous reactions are actually very slow. Which one of these statements is the best explanation for this observation?a. Kpfor the reaction is less than one. b. The entropy change is negative. c. The entropy change is positive. d. Gibbs free energy change is positive. e. Such reactions are endothermic. f. The activation energy of the reaction is large.

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.