In physics, heat is energy that spontaneously passes between a system and its
surroundings in ... another system. Historically, many energy units for
measurement of heat have been used. ... The quan...
The unit of heat called the gram calorie is defined as the amount of heat required
to raise the temperature of one gram of water 1 °C. The kilocalorie, or food ...
The amount of heat needed to raise a unit of mass of the substance one degree
of temperature is called the specific heat of the substance. Because of the way in
In SI system, heat energy is measured in joules (J). Infact, in SI system all forms of
energy is measured in joules. One calorie = 4.185 joules. A larger unit called ...
In the metric system, heat is measured in units of calories, which are defined as
the ... required to melt the icehas historically been called the latent heat of fusion.
The amount of heat needed to convert one unit of mass of a substance from a
solid to liquid is called the heat of fusion, or latent heat of fusion, of the substance.
The intensity and quantity of heat may be explained in the following simple way.
The water in a ... This unit of heat is called a British thermal unit (Btu). The Btu's ...
Sometimes the kilocalorie (kcal) is specified as a unit of heat; 1 kcal = 1000 cal. (
This is the so-called diet calorie.) Less often, the British thermal unit (Btu) is ...
The Btu is a measure in the so-called English system of units (the foot-pound-
second system). ... 3.7 Btus per hour is equivalent to 1 watt of heat dissipation.
The amount of heat that must be added or removed from a unit mass of a ... often
simply called specific heat, which is the heat capacity per unit mass of a pure ...