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Phase rule
Phase rule Phase rule (Phys. Chem.)
A generalization with regard to systems of chemical
equilibrium, discovered by Prof. J. Willard Gibbs. It may be
stated thus: The degree of variableness (number of degrees of
freedom) of a system is equal to the number of components
minus the number of phases, plus two. Thus, if the components
be salt and water, and the phases salt, ice, saturated
solution, and vapor, the system is invariant, that is, there
is only one set of conditions under which these four phases
can exist in equilibrium. If only three phases be considered,
the system is univariant, that is, the fixing of one
condition, as temperature, determines the others.
Meaning of Phase rule from wikipedia
- In thermodynamics, the
phase rule is a
general principle governing "pVT" systems,
whose thermodynamic states are
completely described by the variables...
-
Gibbs phase rule Gl****
databases Hamiltonian mechanics Phase separation Saturation dome Schreinemaker's
analysis Simple phase envelope algorithm "
Phase Diagrams"...
- one
phase, the
water is a
second phase, and the
humid air is a
third phase over the ice and water. The gl**** of the jar is
another separate phase. (See...
-
Physical chemistry: free energy,
phase diagram,
phase rule,
transport phenomena Statistical mechanics:
statistical ensemble,
phase space,
chemical potential...
- the ten
phases (or melds) that a
player must
advance through in
order to win. Many
people shorten the game by
aligning it to
baseball rules and consider...
- July. The
Rule 5
draft has
happened every year
since 1920. The 2021 MLB
lockout led to the
postponement of the
major league phase of the
Rule 5 draft,...
- solution.
Number of
phases,
number of
components and
degree of
freedom (or variance) can be
correlated with one
another with help of
phase rule.
Reactions of...
- the
lever rule is a
formula used to
determine the mole
fraction (xi) or the m****
fraction (wi) of each
phase of a
binary equilibrium phase diagram. It...
- Three-
phase electric power (abbreviated 3ϕ) is a
common type of
alternating current (AC) used in
electricity generation, transmission, and distribution...
-
components have
independent values for
chemical potential and Gibbs'
phase rule follows. The Gibbs−Duhem
equation cannot be used for
small thermodynamic...