Question

What will be the change in the molar Gibbs energy (J/mol) of liquid water when the pressure
changes from 10^4 Pa to 3x10^4 Pa isothermally at 300 K.
(Assuming water to be incompressible) (density = 1 g/ml)​

Answer 1

Sea water is a mixture of salts and water which cannot be separated except by evaporation. Therefore, sea water is considered homogeneous.

Sea water also contains mud, decayed plant, etc., other than salts and water, so it is heterogeneous also.