Physical chemistry

(physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated f…

(physical chemistry) the pressure exerted by a solution necessary to prevent osmosis into that solution when it is separated from the pure solve…

(physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated f…

(physical chemistry) a fourth state of matter distinct from solid or liquid or gas and present in stars and fusion reactors; a gas becomes a pla…

(physical chemistry) a sample of matter in which substances in different phases are in equilibrium; "in a static system, oil cannot be replaced…

(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs; "energy c…

(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs; "energy c…

the branch of physics that makes theoretical predictions about the behavior of macroscopic systems on the basis of statistical laws governing it…

The energy barrier that must be overcome for a reaction to begin.

A substance that speeds up a chemical reaction without being used up.

A balance where a reversible reaction continues in both directions at the same rate.

How quickly a chemical reaction proceeds.

(of colloids) a substance in the colloidal state

(of colloids) a substance in the colloidal state

(of colloids) a substance in which another is colloidally dispersed

(of colloids) a substance in which another is colloidally dispersed

(of colloids) a substance in which another is colloidally dispersed

(of a solution) the extent to which a solution has a higher osmotic pressure than some other

(of a solution) the extent to which a solution has a lower osmotic pressure than some other

a rarefied flow of gas and charged particles (plasma) that stream from the sun and form the solar wind

the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur; "catalysts are said to reduce the en…

energy derived from sources that do not use up natural resources or harm the environment

the energy released by a nuclear reaction

the energy required to separate particles from a molecule or atom or nucleus; equals the mass defect

that part of the energy in a substance that can be released by a chemical reaction

the energy needed to break every chemical bond in a molecule and completely separate all its atoms.

(physics) the potential energy of an electric charge in an electric field, or of an electric current in a magnetic field.

energy made available by the flow of electric charge through a conductor; "they built a car that runs on electricity"; "The power went out aroun…

energy made available by the flow of electric charge through a conductor; "they built a car that runs on electricity"; "The power went out aroun…

a definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules; "according to quantum…

the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur; "catalysts are said to reduce the en…

a definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules; "according to quantum…

the energy involved in the exchange interaction.; "Exchange energy splittings are very elusive to calculate for molecular systems at large inter…

a form of energy that is transferred by a difference in temperature

a form of energy that is transferred by a difference in temperature

energy in a mechanical form

the energy released by a nuclear reaction

energy made available by the flow of electric charge through a conductor; "they built a car that runs on electricity"; "The power went out aroun…

energy that is transmitted in the form of (electromagnetic) radiation; energy that exists in the absence of matter

energy that is radiated or transmitted in the form of rays or waves or particles

the energy equivalent to the mass of a particle at rest in an inertial frame of reference; equal to the rest mass times the square of the speed…

the energy required to separate particles from a molecule or atom or nucleus; equals the mass defect

(physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the dist…

(thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work; "…

(thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work; "…

an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second"

an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second"

an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second"

an electric current that flows in one direction steadily

an electric current that flows in one direction steadily

an electric current that flows in one direction steadily

radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

heat absorbed or radiated during a change of phase at a constant temperature and pressure

the mechanical energy that a body has by virtue of its motion

the mechanical energy that a body has by virtue of its motion

heat absorbed or radiated during a change of phase at a constant temperature and pressure

radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

the mechanical energy that a body has by virtue of its position; stored energy

the mechanical energy that a body has by virtue of its position; stored energy

an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes

the heat required to raise the temperature of one gram of a substance one degree centigrade

electromagnetic radiation that can produce photochemical reactions

electromagnetic radiation that can produce photochemical reactions

a group of nearly parallel lines of electromagnetic radiation

the electromagnetic radiation that would be radiated from an ideal black body; the distribution of energy in the radiated spectrum of a black bo…

the electromagnetic radiation that would be radiated from an ideal black body; the distribution of energy in the radiated spectrum of a black bo…

(cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about…

(cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about…

(cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about…

(cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about…

(cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about…

(cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about…

potential energy that is stored when a body is deformed (as in a coiled spring)

potential energy that is stored when a body is deformed (as in a coiled spring)

a group of nearly parallel lines of electromagnetic radiation

a sudden eruption of intense high-energy radiation from the sun's surface; associated with sunspots and radio interference

electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength

electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength

heat liberated by a unit mass of gas at its boiling point as it condenses into a liquid; "the heat of condensation is equal to the heat of vapor…

heat absorbed by a unit mass of a solid at its melting point in order to convert the solid into a liquid at the same temperature; "the heat of f…

heat liberated by a unit mass of liquid at its freezing point when it solidifies

heat absorbed by a unit mass of material when it changes from a solid to a gaseous state

heat absorbed by a unit mass of a material at its boiling point in order to convert the material into a gas at the same temperature

heat absorbed by a unit mass of a material at its boiling point in order to convert the material into a gas at the same temperature

incident solar radiation

a signal that temporarily stops the execution of a program so that another procedure can be carried out

a single frequency (or very narrow band) of radiation in a spectrum

(physics) the potential energy of a magnetic field.

a short electromagnetic wave (longer than infrared but shorter than radio waves); used for radar and microwave ovens and for transmitting teleph…

an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m

an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m

an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m

a group of nearly parallel lines of electromagnetic radiation

electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target

electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target

electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target

electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target