Compare with molar heat capacity and specific heat. The heat required to raise the temperature of an object by 1°C is called the heat capacity of the object. Heat capacity is an extensive property with units of J K-1.
Heat capacity is defined in general as d, where d is the amount of heat that must be added to a system to increase its temperature by a small amount d. The heat capacity at constant pressure is /âˆ‚); that at constant volume is âˆ‚), where is enthalpy, is internal energy, is pressure, is volume, and is temperature. An upper case normally indicates the molar heat capacity, while a lower case is used for the specific (per unit mass) heat capacity.
the quantity of energy that must be supplied to raise the temperature of a substance. For contaminated soils heat capacity is the quantity of energy that must be added to the soil to volatilize organic components. The typical range of heat capacity of soils is relatively narrow, therefore variations are not likely to have a major impact on application of a thermal desorption process.
The heat capacity of a thermistor is the amount of heat required to increase the body temperature of it by one degree centigrade (1°C). Heat capacity is a common rating of standard PTC thermistors and is expressed in watt-second per cubic inch per degree C (watt-sec/in3/°C). The heat capacity per unit volume relationship of standard PTC thermistors is approximately 50 watt-sec/in3/°C.
The amount of heat necessary to raise the temperature of a given mass 1 degree F. Numerically, the sum of the products of the mass per unit area of each individual material in the roof, wall, or floor surface multiplied by its individual specific heat.
The amount of energy a mass can store for each degree of temperature difference with its surroundings. Defines the quantity of energy required to increase the average temperature of a mass. Common units are Btu's/lb. or Joules/Kg.
(Also called thermal capacity.) The ratio of the energy or enthalpy absorbed (or released) by a system to the corresponding temperature rise (or fall). Heat capacities are defined for particular processes. For a constant volume process, where is the internal energy of a system and is its temperature. For a constant pressure process, where is the system enthalpy. The heating rate, , for a constant volume process is whereas in a constant pressure process, See specific heat capacity.
Heat capacity (usually denoted by a capital C, often with subscripts) is a measurable physical quantity that characterizes the ability of a body to store heat as it changes in temperature. It is defined as the rate of change of temperature as heat is added to a body at the given conditions and state of the body (foremost its temperature). In the International System of Units, heat capacity is expressed in units of joules per kelvin.