Physical chemistry is the study of macroscopic, atomic, subatomic, and particulate phenomena in chemical systems in terms of laws and concepts of physics. It applies the principles, practices and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics and dynamics.
Physical chemistry, in contrast to chemical physics, is predominantly (but not always) a macroscopic or supra-molecular science, as the majority of the principles on which physical chemistry was founded, are concepts related to the bulk rather than on molecular/atomic structure alone. For example, chemical equilibrium, and colloids.
Some of the relationships that physical chemistry strives to resolve include the effects of:
- Intermolecular forces that act upon the physical properties of materials (plasticity, tensile strength, surface tension in liquids).
- Reaction kinetics on the rate of a reaction.
- The identity of ions and the electrical conductivity of materials.
- Surface chemistry and electrochemistry of membranes.
Read more about Physical Chemistry: Key Concepts, History, Journals, Branches and Related Topics
Famous quotes containing the words physical and/or chemistry:
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—Henry David Thoreau (1817–1862)
“If thought makes free, so does the moral sentiment. The mixtures of spiritual chemistry refuse to be analyzed.”
—Ralph Waldo Emerson (1803–1882)