PHYS 1500 Lecture Notes - Lecture 18: Calorie, Heat Capacity, Food Energy
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Review: n particles of an ideal gas at temp. T in a volume is subjected to various processes. Lead has a density of 11. 3*10^3 kg/m^3 at 273 k. what is the density of lead at 363 k? deltav=bvinitialdeltat. B=beta *have to convert since it is 1/degrees celecius. Assume that m is the only one not to change. Are placed in thermal contact, the temperature of the warmer decreases and the temp. The energy exchange ceases when the objects reach thermal equilibrium. The concept of energy was broadened from just mechanical to include internal. Made conservation of energy a universal law of nature. Energy associated with the atoms and molecules of the system. Includes kinetic and potential energy associated with random translational, rotational, and vibrational motion of the particles that make up the system. Heat is transfer of energy between system and its environment because of a temperature difference between them.
