Monday, May 16, 2011

Thermodynamic Processes

    A thermodynamic process is said to occur when the system changes from initial state to final state. The different processes commonly met within the study of chemical thermodynamics are as follows:–
(i).    Isothermal Process:
        When a process is carried out in such a manner that the temperature remains constant throughout the process, it is called Isothermal Process. Obviously, when such a process occurs heat can flow from system to surroundings and vice – versa in order to keep the temperature constant of the system.
(ii).    Adiabatic Process:
        When the process is carried out in such a manner that no heat can flow from system to surrounding or vice – versa i.e. the system is completely insulated from surroundings, it is called an Adiabatic Process.
(iii).    Isochoric Process:
        It is a process during which the volume of system is kept constant.
(iv).    Isobaric Process:
        It is a process during which the pressure of the system is kept constant.

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