PHYS 2101 Lecture : Lecture 36
Document Summary
18: heat (q) - transfer of thermal energy (positive if energy is transferred to system) I"ll post grades to test #4 as soon as i get them. Most nish up heat and temperature (chapt. Next week, bits and parts of chapt. V f area under p-v graph, path dependent. Constant-volume processes (isochoric)- no work is done w = 0 a) if heat is absorbed, the internal energy increases b) note: temperature changes! Cyclical process (closed cycle) eint,closed cycle =0 a) net area in p-v curve is q. Free expansion : adiabatic process with no transfer of heat a) happens suddenly. Ideal gas law n = number of moles. N = number of particles pv = nrt pv = nkt k = boltzmann"s constant . Pressure comes from atoms imparting momentum on walls as they ricochet. p = Combining the above with the ideal gas laws yields the root-mean-square velocity v rms.
