WEBJun 8, 2021 · Answer: Examples of Reversible Changes: Melting of ice into water: By freezing the water we can obtain ice again. Folding a paper: By unfolding it, we can undo the change. Flot milk to cold milk: By boiling milk, we can make it warm again. Examples of Irreversible Changes: Bursting a balloon. Bud becoming a flower.
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WEBThe unit of Gº is J. Use the intercept rule we learned in class to derive the expressions of the chemical potentials of Cu and Zn in the liquid alloy at 1400K in terms of Xcu (or XZn), GC and G2 . When mixing pure liquid Cu and Zn at 1400K, is the process reversible or irreversible? Please explain.
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WEBOct 19, 2023 · Coal is a black or brownishblack sedimentary rock that can be burned for fuel and used to generate electricity. It is composed mostly of carbon and hydrocarbons, which contain energy that can be released through combustion (burning). Coal is the largest source of energy for generating electricity in the world, and the most abundant fossil fuel ...
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WEBClick here👆to get an answer to your question ️ LONG ANSWER QUESTIONS * Explain reversible and irreversible processes. Describe the working of Carnot engine. (Mar 14) Obtain an expression for the effeciency.
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WEBMar 18, 2016 · If we follow this game plan for the irreversible process, even if the final pressure matches the value be obtain in the reversible process, the final temperatures and the final volumes will not match. If you would like me to provide a detailed analysis of the irreversible case, illustrating in detail what transpires, I will be glad to do so.
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WEBSection Summary. Entropy is the loss of energy available to do work. Another form of the second law of thermodynamics states that the total entropy of a system either increases or remains constant; it never decreases. Entropy is zero in a reversible process; it increases in an irreversible process.
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WEBDestructive Distillation is a chemical process used to decompose unprocessed materials. It is done by heating the unprocessed material leading to a relatively large amount of 'cracks'. It is the treatment of certain organic substances with a fixed amount of oxygen. It is useful in producing a variety of products, including ethanol, methanol ...
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WEBMore precisely, an irreversible process is one that depends on path. If the process can go in only one direction, then the reverse path differs fundamentally and the process cannot be reversible. For example, as noted in the previous section, heat involves the transfer of energy from higher to lower temperature. ... Coalfired power plants ...
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WEBMay 14, 2018 · 1. For an irreversible expansion process, a crude approximation to the force exerted by the gas on the piston (where the work is done) can be provided by the equation. F A = Pext = nRT V − k V dV dt F A = P e x t = n R T V − k V d V d t. where Pext P e x t is the force per unit area of the piston on the gas and the constant k is ...
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WEBOct 20, 2016 · The heat due to irreversibility is an irreversible process; 2. ... and highlight a new approach to explain the macroscopic irreversibility in thermodynamics, ...
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WEBOur expert help has broken down your problem into an easytolearn solution you can count on. Question: 2) :Give two examples of reversible processes and two examples of irreversible processes in purely mechanical systems, such as blocks sliding on planes, springs, pulleys, and strings. Explain what makes each process reversible or irreversible.
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WEBThe process is repeated thereafter. The efficiency of carnot engine, eta is given by eta = dfrac{Q_1 Q_2}{Q_1 ... View Solution. Q2. Explain reversible and irreversible process. Describe the working of Carnot Engine. Obtain an expression for its efficiency. View Solution. Q3. A Carnot engine works between ice point and steam point ...
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WEBThe daily consumption of coal is calculated using the information that each day there is × 10 14 J of heat transfer from coal. In the combustion process, we have C + O 2 → CO 2. So every 12 kg of coal puts 12 kg + 16 kg + 16 kg = 44 kg of CO 2 into the atmosphere. Solution for Part 3. The daily coal consumption is
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WEBJan 13, 2022 · As a result, a reversible process can change direction at any time, whereas an irreversible process cannot. When a gas expands reversibly against an external pressure such as a piston, for example, the expansion can be reversed at any time by reversing the motion of the piston; once the gas is compressed, it can be allowed to .
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WEBEither of Equation ( ) or ( ) can be interpreted to mean that the entropy of the system,, is affected by two factors: the flow of heat and the appearance of additional entropy, denoted by, due to irreversibility This additional entropy is zero when the process is reversible and always positive when the process is irreversible.
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WEBReversible process and consequently reversible cycle is an ideal one. There are no losses in the form of friction, temperature differences for heat transfer to take place. Presence of fraction makes the process mechanically irreversible and the temperature difference for heat transfer during the process makes the process thermally irreversible.
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WEBSolutions for Chapter 6 Problem 13CQ: Explain the difference between a reversible and an irreversible process. List three or more examples of irreversible processes. ... On other hand for an irreversible process, the initial state of system and surroundings cannot be achieved. Whatever one may try, there will be always some alterations to ...
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WEBThe Rankine cycle is a kind of ideal cycle that described the process by which the heat engines or steam engines allow work to be extracted from the fluid such as steam in steam power plants. The heat sources from which the power plant uses the Rankine cycle are coal, natural gas, or oil.
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WEBJun 24, 2023 · The combustion of fossil fuels is an example of an irreversible process in nature, as it involves a chemical reaction that permanently changes the composition of the fuel and releases energy that cannot be fully recovered.. When fossil fuels, such as coal or oil, are burned, they undergo a chemical reaction with oxygen in the air, releasing .
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WEBNov 19, 2020 · For an irreversible adiabatic process entropy is generated within the system resulting in an increase in the entropy of the system only. An example of an irreversible adiabatic process is the rapid expansion or compression of a gas by a piston in an insulated cylinder such that the gas is not in internal equilibrium during the process.
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WEBThings or processes which cannot be reversed are called irreversible process. Burning of coal is irreversible as it will not produce coal again. ... Name the process and explain it. ... View Solution. Q5. Assertion :In an irreversible process, finite changes are made; therefore the system is not at equilibrium throughout the process. Reason: An ...
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WEBFeb 15, 2014 · 1 Answer. Spontaneous processes are irreversible because they can be reversed only by taking a different path to get back to their original state. A reversible process can take the same path to return to its original state. An irreversible process must take a different path to get back to its original state. For example, when the .
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WEBJul 3, 2023 · It is used as fuel. It is a better fuel than coal because it produces more heat on burning than an equal amount of burns without producing any smoke whereas coal produces a lot of smoke on burning. Question 8 Explain the process of formation of petroleum. Answer It was formed by the decomposition of the remains of tiny plants and ...
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WEBDefine entropy and calculate the increase of entropy in a system with reversible and irreversible processes. Explain the expected fate of the universe in entropic terms. ... Figure (a) Heat transfer from a hot object to a cold one is an irreversible process that produces an overall increase in entropy. (b) The same final state and, thus ...
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WEBMay 15, 2023 · It is an irreversible chemical reaction where complex substances are broken down into simpler ones. Continue reading to learn about destructive distillation, its process, products, comparison with fractional distillation, and appliions along with FAQs. ... Coal Tar: The process of making coke and coal gas from coal results in the .
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WEB3,508 solutions. 10th Edition • ISBN: (5 more) Erwin Kreyszig. 4,134 solutions. 1 / 4. Find stepbystep Engineering solutions and your answer to the following textbook question: Is it possible for the entropy change of a closed system to be zero during an irreversible process? Explain..
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WEBMay 13, 2023 · Recognizing that the work done in a reversible process at constant pressure is. wrev = − PΔV, we can express Equation as follows: ΔU = qrev + wrev = TΔS − PΔV. Thus the change in the internal energy of the system is related to the change in entropy, the absolute temperature, and the PV work done.
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WEBJan 6, 2020 · Environmental Impact Assessment (EIA) is a process of evaluating the likely environmental impacts of a proposed project or development, taking into account interrelated socioeconomic, cultural and humanhealth impacts, both beneficial and adverse. UNEP defines Environmental Impact Assessment (EIA) as a tool used to .
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WEBWhere equality sign is for reversible process and inequality sign is for an Irreversible process (from Eq. 6). Note: The effect of irreversibility is always to increase the entropy of the system. Change of Entropy for an Isolated System: We know that, in an isolated system, matter, work or heat cannot cross the boundary of the system.
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WEBAn irreversible process is what we encounter in reality almost all the time. The system and its environment cannot be restored to their original states at the same time. Because this is what happens in nature, it is also called a natural process. The sign of an irreversible process comes from the finite gradient between the states occurring in ...
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A material supplier from Belgium would like to produce limestone powder for his custome...
India is rich in various mineral resources and it is an important mineral processing market
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