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The product of pressure and the volume of an ideal gas is directly proportional to the number of moles of the gas and the absolute temperature.

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Absolute Zero

The zero point on the absolute temperature scale, -273.15°C or 0 K, theoretically, the temperature at which molecular motion ceases. The concept of an absolute zero temperature was first deduced from experiments with gases. When a fixed volume of gas is cooled, its pressure decreases with its temperature. Absolute zero physically possesses quantum mechanical zero-point energy.

Positron

A Nuclear particle with the mass of an electron but opposite charge.

Half-Life

The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.

Electronic Transition

The transfer of an electron from one energy level to another.

K Capture

Absorption of a K shell (n=1) electron by a proton as it is converted to a neutron.

Chemical Kinetics

The study of rates and mechanisms of chemical reactions and of the factors on which they depend.

Can water burn?

It’s known that water consists of atoms of molecules of oxygen and hydrogen. Since any compound with oxygen indicates the ability of the substance to burn, water is no exception. Thus, water has a surprising property of already "burnt out" compound.

Amorphous Solid

A noncrystalline solid with no well-defined ordered structure.

Homogeneous Equilibria

Equilibria involving only one species in a single phase. For example, all gases, all liquids or all solids.

Ioniztion

The breaking up of a compound into separate ions.