is a measure of hotness or coldness of a physical object with reference
to some standard value. Similar to pressure or density, it is an intensive
property. Meaning that it does not change as the amount of matter changes.
is a unit of temperature on the Celsius scale, a temperature scale originally
known as the centigrade scale. It's a linear scale based on
for the freezing point of water and
for the boiling point of water.
is a temperature scale for which the freezing and boiling points of water
are defined as
degrees respectively. The Réaumur scale was used widely in Europe,
particularly in France, Germany and Russia.