Absolute zero: Absolute zero is the lower limit of the thermodynamic
temperature scale, a fictious state at which the enthalpy and entropy of a cooled ideal gas reaches its minimum value, taken as
0. The theoretical temperature is determined by extrapolating the ideal
gas law
Bimetallic strip: A bimetallic strip is used to convert a temperature change into
mechanical displacement. The strip consists of two strips of different metals
which expand at different rates as they are heated, usually steel and copper, or in some cases steel and brass
Calorie: The name calorie is used for two units of energy. The small calorie or
gram calorie is the approximate amount of energy needed to raise the temperature
of one gram of water by one degree Celsius.
Celsius scale: temperature scale according to which the temperature difference between
the reference temperatures of the freezing and boiling points of water is
divided into 100 degrees. The freezing point is taken as 0 degrees
Celsius and the boiling point as 100 degrees Celsius.
Fahrenheit scale: temperature scale in which the temperature
difference between two reference temperatures, the melting and boiling points
of water, is divided into 180 equal intervals called degrees. The freezing
point is taken as 32°F and the boiling point as 212°F.
heat: In physics,
heating is transfer of energy from a hotter body to a colder one, other
than by work or transfer of matter. It occurs spontaneously whenever there is a
suitable physical pathway between the bodies.
internal energy: In thermodynamics, the internal energy is the total energy contained by a
thermodynamic system.
kelvin scale: The kelvin is a unit of measurement for temperature. It is one of the
seven base units in the International System of Units and is assigned the unit
symbol K.
Kilocalorie: In a popular use of the term calorie, dietitians loosely use it to mean the
kilocalorie, sometimes called the kilogram calorie, or large Calorie
(equal to 1,000 calories), in measuring the calorific, heating, or metabolizing
value of foods.
specific heat capacity: The specific heat is the amount of heat per
unit mass required to raise the temperature by one degree Celsius.
temperature:
temperature scale, a fictious state at which the enthalpy and entropy of a cooled ideal gas reaches its minimum value, taken as
0. The theoretical temperature is determined by extrapolating the ideal
gas law
Bimetallic strip: A bimetallic strip is used to convert a temperature change into
mechanical displacement. The strip consists of two strips of different metals
which expand at different rates as they are heated, usually steel and copper, or in some cases steel and brass
Calorie: The name calorie is used for two units of energy. The small calorie or
gram calorie is the approximate amount of energy needed to raise the temperature
of one gram of water by one degree Celsius.
Celsius scale: temperature scale according to which the temperature difference between
the reference temperatures of the freezing and boiling points of water is
divided into 100 degrees. The freezing point is taken as 0 degrees
Celsius and the boiling point as 100 degrees Celsius.
Fahrenheit scale: temperature scale in which the temperature
difference between two reference temperatures, the melting and boiling points
of water, is divided into 180 equal intervals called degrees. The freezing
point is taken as 32°F and the boiling point as 212°F.
heat: In physics,
heating is transfer of energy from a hotter body to a colder one, other
than by work or transfer of matter. It occurs spontaneously whenever there is a
suitable physical pathway between the bodies.
internal energy: In thermodynamics, the internal energy is the total energy contained by a
thermodynamic system.
kelvin scale: The kelvin is a unit of measurement for temperature. It is one of the
seven base units in the International System of Units and is assigned the unit
symbol K.
Kilocalorie: In a popular use of the term calorie, dietitians loosely use it to mean the
kilocalorie, sometimes called the kilogram calorie, or large Calorie
(equal to 1,000 calories), in measuring the calorific, heating, or metabolizing
value of foods.
specific heat capacity: The specific heat is the amount of heat per
unit mass required to raise the temperature by one degree Celsius.
temperature: