版权所有：华东理工大学物理化学教研室 11 10.2 Ion activities the chemical potential of a solute in a real solution is related to its activity a by μ += lnaRT o μ 1) The definition of activity o = γ / bba If the activity is related to the molality, b, then the standard state is a hypothetical solution with molality =1 mol kg-1 in which the ions are behaving ideally. ob版权所有：华东理工大学物理化学教研室 11 10.2 Ion activities the chemical potential of a solute in a real solution is related to its activity a by μ += lnaRT o μ 1) The definition of activity o = γ / bba If the activity is related to the molality, b, then the standard state is a hypothetical solution with molality =1 mol kg-1 in which the ions are behaving ideally. ob