[baburaj]

mw= 0.05585 [kg mol^-1]
Density= 7860 [kg m^-3]
z= 2
F= 96500 [A s mol^-1]
Expression 2 = (mw*Current Density@brine bottom*ctstep)/(Density*z*F)

This expression is showing error while executing.
WARNING
Syntax error detected in the expression assigned to 'Expression 2'.
Successfully read 3 characters:
mw
then error detected at:
= 0.05585 Density = 7860 z = 2F= 96500 [A s mol^-1]Expression 2 = (mw*Current Density@brine bottom*ctstep)/(Density*z*F)
Details - Unexpected character.what is wrong with this

[mettler]

I am going to take a guess and say that it does not know what "Current Density@brine bottom*ctstep" means.. Have you tried eliminating things in expression 2 to see if you can get it to work - start with one variable and keep adding one until you get an error