![]() After making contact, every measurableproperty of the thermometer and the body assumes a stable value, and the bodiesare said to be in thermal equilibrium. In order for a thermometer to measure the temperature of a body, it must be inintimate contact with the body. When the temperature increases, thevolume of a liquid increases, the length of a metal rod increases, theelectrical resistance increases, the pressure of a confined gas increases, etc.If we know the change in these parameters as a function of the temperature, wecan use them to measure the temperature. Properties of many bodies changeas their thermal environment is altered. The central concept ofthermodynamics is the temperature T. Thermodynamics deals with the internal energies of systems and is governed bya set of laws (similar to Newton's law for mechanics). ![]() TEMPERATURE 16.TEMPERATURE 16.1.Thermal Equilibrium
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |