Is the branch of chemistry concerned with the application of the techniques and theories of physics to the study of chemical systems.

Physical chemistry is the branch of chemistry concerned with the application of the techniques and theories of physics to the study of chemical systems.

Explanation:

Physical chemistry is the the branch of the chemistry which uses and implement laws, theories and techniques of physics to in chemistry to study various processes taking place in chemistry such: Behavior of matter at atomic level in a molecule or how reaction occurs etc.

The common examples of this are thermodynamics and quantum mechanics.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

c. electrical charges of ionic bonds.