物理代写|PHYS200 Thermodynamics
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PHYS200 Thermodynamics课程简介
Thermodynamics is the branch of physics that deals with the study of the relationship between heat, work, and energy. The laws of thermodynamics govern the behavior of all physical systems, including those that involve the transfer of energy as heat or work.
The First Law of Thermodynamics: The law of conservation of energy states that energy cannot be created or destroyed, only converted from one form to another. The first law of thermodynamics is a statement of this principle as applied to thermodynamic systems. It states that the total energy of a closed system remains constant, although it may be converted from one form to another.
The Second Law of Thermodynamics: The second law of thermodynamics states that the entropy of an isolated system never decreases over time. Entropy is a measure of the disorder or randomness of a system, and the second law of thermodynamics tells us that the natural tendency of any system is to become more disordered over time.
Thermodynamic Property Relationships: In thermodynamics, a property is a characteristic of a system that can be measured or calculated. Examples of thermodynamic properties include temperature, pressure, volume, and entropy. The relationships between these properties are described by equations of state, which relate them to each other and to the state of the system.
PREREQUISITES
Presents the definitions, concepts, and laws of thermodynamics. Topics include the first and second laws, thermodynamic property relationships, and applications to vapor and gas power systems, refrigeration, and heat pump systems. Examples and problems are related to contemporary aspects of energy and power generation and to broader environmental issues.
Outcome 1: Students will be able to choose an appropriate system and identify interactions between system and surroundings.
Outcome 2: Obtain values of thermodynamic properties for a pure substance in a given state, using table, relations for incompressible substances, and relations for gases.
Outcome 3: Apply energy and entropy balances in the control mass (closed system) and control volume formulations to the analysis of devices and cycles.
Cornell students enroll only in ENGRD 2210. MAE 2210 for Non-CU students.
PHYS200 Thermodynamics HELP(EXAM HELP, ONLINE TUTOR)
(i) The minimal work required to isothermally drive a system from one state to another is the difference between free energies. The dissipated or irreversible work associated with the isothermal entropy production [cf. (17.4)] is related by the second law to this minimal work.
(ii) QND measurements increase the free energy and thereby the work that can be extracted isothermically. The upper bound on extractable work following a measurement is proportional to the Shannon-entropy information of the measurement (17.12).
(iii) The minimal work required to reset a symmetric memory is the Shannon entropy of the measurement generated by the meter [cf. (17.15)], which yields the Landauer bound for work required to reset a completely random bit. The same work is extractable by completely randomizing a pure-state qubit.
(iv) The minimal work required to store the measurement result and subsequently reset the memory is proportional to the mutual information of the system and the meter.
Textbooks
• An Introduction to Stochastic Modeling, Fourth Edition by Pinsky and Karlin (freely
available through the university library here)
• Essentials of Stochastic Processes, Third Edition by Durrett (freely available through
the university library here)
To reiterate, the textbooks are freely available through the university library. Note that
you must be connected to the university Wi-Fi or VPN to access the ebooks from the library
links. Furthermore, the library links take some time to populate, so do not be alarmed if
the webpage looks bare for a few seconds.
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