Specific heat is the energy required to cause a given amount of change in this quantity.
A form of this quantity described by the word "brightness" is used to approximate a grey body by a black body. A particular wavelength is related to this quantity by Wien's displacement law. This variable is inversely proportional to thermodynamic beta. It is formally defined as the derivative of internal energy with respect to entropy. An equivalence relation involving it is established by the zeroth law of thermodynamics. The efficiency of the Carnot cycle is a function of this property of the reservoirs. Specific heat is the energy required to cause a given amount of change in this quantity. For 10 points, name this property of a material that can be measured in kelvins.
A form of this quantity described by the word "brightness" is used to approximate a grey body by a black body.
temperature