Stated in equation form as delta G equals delta G naught plus R times T times the natural log of the reaction quotient, FTP, identify this chemistry equation named after the formulator of the third law of thermodynamics.
One of its key terms represents the activities of the species in the generalized version of this equation, where the activities of gases are usually taken as their partial pressures and the activities of solutes are taken as their molar concentrations.  At standard temperature and pressure, this equation is also capable of calculating the electric potential of a cell.  Stated in equation form as delta G equals delta G naught plus R times T times the natural log of the reaction quotient, FTP, identify this chemistry equation named after the formulator of the third law of thermodynamics.
One of its key terms represents the activities of the species in the generalized version of this equation, where the activities of gases are usually taken as their partial pressures and the activities of solutes are taken as their molar concentrations.  
Nernst equation