PHYS 101 Chapter Notes - Chapter 14: Boltzmann Constant, Forced Convection, Boltzmann Equation
9 Dec 2017
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Flow of heat: heat flows from burner to pan, sun to earth, etc: calorie (cal): the amount of heat necessary to raise the temperature of 1 gram of water by. 1 celsius degree: kilocalorie (kcal): 1000 calories (require 1kg of water to 1 celsius degree, mechanical equivalent of heat: 4. 186 j of work = 1 cal; 4. 186 kj = 1 kcal. Heat: transfer of energy (not a substance nor a form of energy: energy transferred form one object to another because of a difference in temperature, heat = joules. Internal energy: sum total of all the energy of molecules in an object. Internal energy of ideal gas depends on temperature & number of moles of gas: rotational & vibration energy must be considered if gas molecule contains more than 1 atom. Internal energy of real gases depends on pressure, volume & temperature.
