Define Phase Rule and its importance in Pharmacy

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Sirisha Pingali's picture


Phase rule determines the number of degrees of freedom of chemical system.

F= C-P+2

where F = degrees of freedom

C= no. of chemical components in the system

P= No. of phases.

Phase rule is important is determining the STABILITY FIELDS, TRIPLE POINTS AND EQUILIBRIUM BOUNDARY LINES in a two dimensional system. It is the major concept in Thermodynamics of solutions.

Ref: accessed on 10th Feb 2014.

Sirisha Pingali

Viswanadha Institute of Pharmaceutical Sciences.

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