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  2. Physical chemistry - Wikipedia

    en.wikipedia.org/wiki/Physical_chemistry

    t. e. Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibria. Physical chemistry, in contrast to chemical ...

  3. Atomic physics - Wikipedia

    en.wikipedia.org/wiki/Atomic_physics

    Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. Atomic physics typically refers to the study of atomic structure and the interaction between atoms. [ 1 ] It is primarily concerned with the way in which electrons are arranged around the nucleus and the processes by which these ...

  4. Chemical potential - Wikipedia

    en.wikipedia.org/wiki/Chemical_potential

    Chemical potential. In thermodynamics, the chemical potential of a species is the energy that can be absorbed or released due to a change of the particle number of the given species, e.g. in a chemical reaction or phase transition. The chemical potential of a species in a mixture is defined as the rate of change of free energy of a ...

  5. Condensed matter physics - Wikipedia

    en.wikipedia.org/wiki/Condensed_matter_physics

    e. Condensed matter physics is the field of physics that deals with the macroscopic and microscopic physical properties of matter, especially the solid and liquid phases, that arise from electromagnetic forces between atoms and electrons. More generally, the subject deals with condensed phases of matter: systems of many constituents with strong ...

  6. Thermodynamics - Wikipedia

    en.wikipedia.org/wiki/Thermodynamics

    Thermodynamics is a branch of physics that deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation. The behavior of these quantities is governed by the four laws of thermodynamics, which convey a quantitative description using measurable macroscopic physical quantities ...

  7. Chemical physics - Wikipedia

    en.wikipedia.org/wiki/Chemical_physics

    Chemical physics is a branch of physics that studies chemical processes from a physical point of view. It focuses on understanding the physical properties and behavior of chemical systems, using principles from both physics and chemistry. This field investigates physicochemical phenomena using techniques from atomic and molecular physics and ...

  8. Branches of physics - Wikipedia

    en.wikipedia.org/wiki/Branches_of_physics

    medical physics, the application of physics in medicine to prevention, diagnosis, and treatment; physical chemistry, dealing with physical processes and their relations in the science of physical chemistry; physical oceanography, is the study of physical conditions and physical processes within the ocean, especially the motions and physical ...

  9. Thermodynamic free energy - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_free_energy

    The free energy is the portion of any first-law energy that is available to perform thermodynamic work at constant temperature, i.e., work mediated by thermal energy. Free energy is subject to irreversible loss in the course of such work. [1] Since first-law energy is always conserved, it is evident that free energy is an expendable, second-law ...

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