Using the Nernst equation, setting E 0 = 0 V and the hydrogen gas fugacity ( corresponding to activity ) at 1, the equation for the lower stability line of water in the Pourbaix diagram will be
42.
The town is the birthplace of Walther Nernst, a chemist who in 1920 received the Nobel Prize in Chemistry for the Nernst equation, which gives the standard electrode potential of an electric cell containing various concentrations of electrolytes.
43.
Cell voltage is chemically determined by the Nernst equation and ranges, in practical applications, from 1.0 to 2.2 V . Its storage capacity is a function of the volume of the tanks holding the solution.
44.
Also does this value of Q or \ Delta Q change depending on the ratio of concentration of ions in the half cells ( according to the Nernst equation initial voltage is the same for the same ratio of product ions and reactant ions )?
45.
The Nernst equation is frequently expressed in terms of base 10 logarithms ( " i . e . ", common logarithms ) rather than natural logarithms, in which case it is written, " for a cell at 25 �C ":
46.
For common usage the Nernst equation is often given in a simplified form by assuming typical human body temperature ( 37 �C ), reducing the constants and switching to Log base 10 . ( The units used for concentration are unimportant as they will cancel out into a ratio ).
47.
If X is constant then V is constant-however X can change for various reasons-mostly due to concentration . . ( the are models of this-mostly the Nernst equation ) 87.102.94.157 11 : 45, 24 October 2007 ( UTC)
48.
I became especially interested in electricity at tha age of 8 after I picked up a book about it, and constructed my own galvanic cells and electroplating devices . ( Didn't really understand the Nernst equation at the time though . . . redox potentials at the age of 10 ).
49.
The Nernst equation shows that hydrogen peroxide can oxidize chloride ( E?= 1.36 V ), bromide ( E?= 1.09 V ) and iodide ( E?= 0.536 V ) from a thermodynamic perspective under natural conditions, i . e ., a temperature range of about 0-30 �C and a pH ranging from about 3 ( humic soil layer ) to about 8 ( sea water ).
