APPENDIXC SYMBOLS FORPHYSICALQUANTITIES 475
(continued from previous page)
Symbol Physical quantity SI unit
stoichiometric number (dimensionless)
C number of cations per formula unit (dimensionless)
number of anions per formula unit (dimensionless)
xi
advancement (extent of reaction) mol
pi
osmotic pressure Pa
rho
density kg m ^3
tau
torque J
phi
fugacity coefficient (dimensionless)
electric potential V
Å electric potential difference V
m osmotic coefficient, molality basis (dimensionless)
L relative apparent molar enthalpy of solute J mol ^1
omega
! angular velocity s ^1
