Question

How does density change with salinity?

Answer 1

Hint:Density is one of the physical properties which is determined by taking the ratio of the mass of the substance to the volume of the substance. If the mass is expressed in units of kilograms and volume is in meter cube then the unit of the density is kilogram per meter cube.
Salinity is the measure of the salt present in the solvent. It is also called saltiness. The change in the salinity also changes the density of the solution.
Salinity is measured in units of grams or kilograms also in units of parts per thousands.

Complete solution:
The salinity and density of the solution are related to each other. Salinity affects the density of the solution.
As salinity increases that the concentration of the salt in the solution increases leads to an increase in the mass of the solution.
As the mass of the solution increases, the density of the solution also increases because density is directly related to the mass.
Here, as salinity increases, the density of the solution also increases.
Thus, there is a direct relationship between the salinity and the density of the solution.

Note:As the density is the ratio of the mass to the volume of the substance increase in the mass of the substance or a decrease in volume leads to an increase in the density of the substance.
As the salinity is the measure of the amount of the salt in the solution, an increase in the amount of the salt leads to an increase in the salinity of the solution.
Salinity is important to understand the hydrological cycle and to study the effect of density on it.