Assertion: photon's energy | /r/HasProperty | the system's temperature
Facets:
Source sentences:
text: \displaystyle i} and that of j {\displaystyle j} , respectively, E i {\displaystyle E_{i}} and E j {\displaystyle E_{j}} their energies, k {\displaystyle k} the Boltzmann constant and T {\displaystyle T} the system's temperature.