Physics, 02.09.2019 16:30 imgoingtowriteabook
The van der waals equation of state is perhaps the best-known approximate equation of state for a non-ideal gas, but various other parameterized functional forms for gas-phase equations of state have also been suggested. calculate (i) the isothermal compressibility kt -(op)t n and(ii) the (volumetric) expansivity av-v ( at (also known as the coefficient of thermal expansion) for: (a) a fluid governed by the berthelot equation of state, given by: p = anr- , for some constant parameters a and b; and then (b) a gas following the dieterici equation of state: p kt, for some fixed parameters a and b (b a gas folowing the dietena equation of state: p = kt e ke tv for some fixed parameters a and b (not necessarily the same in the two different cases). yes, you can use a program like mathematica or matlab if you wish notice that both equations of state reduce to the ideal gas law in the limit where a -> 0 and b -0 so as a good sanity check, verify explicitly that your answers for the response functions reduce to the ideal-gas results in this limit. hint: it will be easier if you do not try to solve explicitly for v(t, p, n), but use implicit differentiation
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Physics, 22.06.2019 05:30
Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?
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Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
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Physics, 22.06.2019 11:10
Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.
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Physics, 22.06.2019 20:30
Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.
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The van der waals equation of state is perhaps the best-known approximate equation of state for a no...
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