Mathematics

Mathematics, 30.08.2019 21:30, lanay645

Quick 24 points the first law of thermodynamics states that △e = q-w, what does △e stand for
a.) the heat added to the system
b.) the change in the internal energy of the system
c.) the internal energy of the system
d.) the work done by the piston

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Physics, 02.07.2019 21:10, arielcainess

Classical thermodynamics of a two-state system: a (very small) discrete system has only two states l and 2 with energies el =-eo and e2-eo, respectively. this could, for instance, be a spin 1/2 particle in an external magnetic field. since this system contains only one particle, the different thermodynamic ensembles (of the systems described below) do not provide equivalent descriptions of the physics. we want to explore this difference for this simplest possible system. (a) if the system is isolated from the environment which are the possible values for the internal energy of the system? [5 points] (b) in the following we assume that the system is not isolated any more but instead interacting with a heat bath of temperature t. using the canonical distribution of classical thermodynamics, what are the probabilities p, to find the system in each of the two states in this case? [10 points] (c) find the internal energy as a function of the temperature of the heat bath (express it in terms of a familiar hyperbolic function). [15 points] (d) using the limiting values of the expression in (c), what are the possible values for the internal energy of the system when coupled to the heat bath? [10 points]

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Physics, 26.07.2019 23:30, sarah8479

Calculate the change in entropy of 1.00 kg of water when it is heated from 10 degree c to 90 degree c. note: the specific heat capacity of water is 4186 j kg^-1 k^-1 given that the water was heated as a result of being added to an (otherwise) isolated heat reservoir at 90 degree c, what was the change in entropy of the heat reservoir, and what was the change in entropy of the complete system? how is the zeroth law of thermodynamics important in our definition of what temperature is? what does the first law of thermodynamics state? all process must abide by the first law of thermodynamics; however the first law of dynamics allows for some non-natural processes. give an example. the so called "central thermodynamic equation" states: tds = d e _ int + pdv show that this equation is consistent with the first law of thermodynamics. note any assumptions.

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Physics, 30.07.2019 19:00, lakhanir2013

Question 1in the first law of thermodynamics, , what does q stand for? the internal energy of the systemthe work done by the pistonthe change in the internal energy of the systemthe heat added to the systemquestion 2if the thermal energy of the system increases by 400 j, and 1,100 j of heat were added to the system, how much work did the system do? 400 j700 j1,500 j1,100 j

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Physics, 31.08.2019 00:30, amanramesh2004

Complete the passage to explain how the first law of thermodynamics describes what happens to heat added to or absorbed by a system. the first law of thermodynamics describes how the heat added to a system is conserved. heat the internal energy of the system or is transformed into or both. heat is just transformed, not created or destroyed.

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Quick 24 points the first law of thermodynamics states that △e = q-w, what does △e stand for
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