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Flashcards - Understanding the Properties of Matter

Flashcards - Understanding the Properties of Matter
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London dispersion force
London dispersion forces are a type of force acting between atoms and molecules
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triple point
In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases of that substance coexist in thermodynamic equilibrium
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phase transition
The term phase transition is most commonly used to describe transitions between solid, liquid and gaseous states of matter, and, in rare cases, plasma
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diffusion
Diffusion is the net movement of molecules or atoms from a region of high concentration to a region of low concentration
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Melting
Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid
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kinetic energy
In physics, the kinetic energy of an object is the energy that it possesses due to its motion
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kinetic energy
In physics, the kinetic energy of an object is the energy that it possesses due to its motion
Melting
Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid
diffusion
Diffusion is the net movement of molecules or atoms from a region of high concentration to a region of low concentration
phase transition
The term phase transition is most commonly used to describe transitions between solid, liquid and gaseous states of matter, and, in rare cases, plasma
triple point
In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases of that substance coexist in thermodynamic equilibrium
London dispersion force
London dispersion forces are a type of force acting between atoms and molecules
absolute zero
Absolute zero is the lower limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reaches its minimum value, taken as 0
partial pressure
In a mixture of gases, each gas has a partial pressure which is the hypothetical pressure of that gas if it alone occupied the volume of the mixture at the same temperature
effusion
Effusion is the process in which a gas escapes through a hole of diameter considerably smaller than the mean free path of the molecules
ideal gases
An ideal gas is a theoretical gas composed of many randomly moving point particles that do not interact except when they collide elastically
Amorphous solids
In condensed matter physics and materials science, an amorphous or non-crystalline solid is a solid that lacks the long-range order characteristic of a crystal
Celsius scale
Celsius, also known as centigrade, is a scale and unit of measurement for temperature
pressure
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed

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