EX 2 Flashcards
(38 cards)
a graphical representation of the physical states of a substance under different conditions of temperature and pressure.
PHASE DIAGRAM
A typical phase diagram has ____ on the y-axis
PRESSURE
A typical phase diagram has ____ on the x-axis
TEMPERATURE
in phase diagram, how many states of the substance coexist in equilibrium on the lines or curves
TWO STATES
the transition from one state of matter to another
PHASE TRANSITION
- A state of matter that consists of loose, free moving particles which form the shape set by the boundaries of the container in which the it is in.
- motion of the individual particles is much less restricted
LIQUID
A liquid’s relative resistance to flow
VISCOSITY
- A state of matter with tightly packed particles which do not change the shape or volume of the container that it is in.
- can expand and contract when temperatures change
- have strong intermolecular forces that keep particles in close proximity to one another
SOLID
all true solids have
CRYSTALLINE STRUCTURE
particles are arranged in a three-dimensional, orderly pattern.
CRYSTALLINE STRUCTURE
- A state of matter where particles are spread out with no definite shape or volume.
- take the shape and fill the volume of the container that it is placed in
- there are no intermolecular forces holding the particles since each particle travels at its own speed in its own direction.
GAS
The particles of a gas are often separated by
GREAT DISTANCES
illustrate the variations between the states of matter of elements or compounds as they** relate to pressure and temperatures**.
PHASE DIAGRAM
the point on a phase diagram at which the three states of matter: gas, liquid, and solid coexist
TRIPLE POINT
the point on a phase diagram at which the substance is indistinguishable between liquid and gaseous states
CRITICAL POINT
the curve on a phase diagram which represents the transition between liquid and solid states
FUSION (melting or freezing) CURVE
the curve on a phase diagram which represents the transition between gaseous and liquid states
VAPORIZATION (or condensation) CURVE
the curve on a phase diagram which represents the transition between gaseous and solid states
SUBLIMATION (or deposition) CURVE
represent the stable states of a system in equilibrium
LABELS ON THE GRAPH
represent the combinations of pressures and temperatures at which two phases can exist in equilibrium.
LINES
represents the combination of pressure and temperature that facilitates all phases of matter at equilibrium.
TRIPLE POINT
terminates the liquid/gas phase line and relates to the critical pressure
CRITICAL POINT
the pressure above which a supercritical fluid forms.
CRITICAL PRESSURE
When moving from the bottom of the diagram to the top, the relative density
INCREASING
