A spontaneous reaction A spontaneous reaction is associated exclusively with homeothermic organisms. will never occur. has an overall positive free energy change. could occur but might take a very long time. has to occur immediately.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:

Which subshell is represented by the actinides family?