Communiion Basics. Communiion is an everpresent phenomenon. It is such a dynamic and enduring process that often we are not even aware of when it starts or ends. We continue to develop our communiion ability and knowledge throughout our lives. This book strives to assist in this development by providing the knowledge, theory, and ...
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WEBCalculate a change in entropy for an irreversible process of a system and contrast with the change in entropy of the universe; Explain the third law of thermodynamics; ... A coal power plant consumes 100,000 kg of coal per hour and produces 500 MW of power. If the heat of combustion of coal is 30 MJ/kg, what is the efficiency of the power plant?
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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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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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WEBIs it possible for the entropy change of a closed system to be zero during an irreversible process? Explain. There are 2 steps to solve this one. To begin solving, understand that entropy is a measure of the disorder or randomness of a system and that a closed system neither allows the transfer of matter in or out of the system, but does allow ...
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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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WEBExplain your choice. h) The compound " A B" is a gas and the element " C" is a solid. What effect would grinding " C" into a fine powder have on the graph shown here? 4. Burning coal (Carbon) is a highly exothermic reaction. However coal, in contact with air at room temperature has such a slow reaction that it is not noticeable.
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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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WEBYour solution's ready to go! Our expert help has broken down your problem into an easytolearn solution you can count on. Question: An ideal gas in thermal contact with the surroundings is cooled in an irreversible process at constant pressure. Are delta S, delta S surroundings, and delta S total, positive, negative, or zero?
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WEBQuestion: To determine the entropy change for an irreversible process between states 1 and 2, should the integral integral_1^2 delta Q/T be performed along the actual process path or an imaginary reversible path? Explain.
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WEBJan 30, 2023 · This process continues over and over again, representing a reversible reaction. Unlike irreversible reactions, reversible reactions lead to equilibrium: in reversible reactions, the reaction proceeds in both directions whereas in irreversible reactions the reaction proceeds in only one direction. To learn more about this phenomenon, click .
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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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WEBAn irreversible process is defined as a process that cannot be reversed, a process, that cannot return both the system and the surroundings to their original conditions. Also, the entropy increases with the increase in the number of energy levels. Energy increases the entropy of the system. Presence of friction and heat losses.
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WEBMechanical Engineering. Mechanical Engineering questions and answers. 8. To determine the entropy change for an irreversible process between states 1 and 2, should the integral be performed along the actual process path or an imaginary reversible path? Explain. Is it possible to create entrony2 Is it possible to destroy it2.
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WEBReversible process: Irreversible process: i. A reversible process is a change that can be retraced in a reverse (opposite) direction. An irreversible process is a change that cannot be retraced in a reverse (opposite) direction. ii. The path of a reversible process is the same in the forward and the reverse direction.
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WEBStep 4: Determine if a process with zero reversible work can be irreversible A process with zero reversible work can also be irreversible. In these situations, even though there is no energy transfer between the system and its surroundings, the process may still be irreversible due to factors like friction, heat transfer, or losses in the system.
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WEBJun 14, 2021 · A process that is not reversible is said to be irreversible. We distinguish between two kinds of irreversible processes. A process that cannot occur under a given set of conditions is said to be an impossible process. A process that can occur, but does not do so reversibly, is called a possible process or a spontaneous process.
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WEBDec 3, 2022 · My teacher said that the magnitude of the work done in the reversible process will be more than that done in the irreversible process. The reason behind this, my teacher said, was that the final temperature of irreversible process will always be higher than that of reversible process. But we were not taught why this happens.
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WEBStep 1. Reversible Process : The system and surroundings can be restored to their initial states ⋅. No energy is dissipated or ... View the full answer Step 2. Unlock. Answer. Unlock. Previous question Next question.
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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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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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WEBMar 11, 2023 · Reversible process: − a reversible process is a process whose direction can be 'reversed' by including infinitesimal changes to some property of the system via its surroundings. Irreversible process:− In a science a process that is not reversible is called irreversible. this concept arises frequently in thermodynamics.
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WEBAug 3, 2019 · 2. A generic process is defined reversible if with its reverse is possible to come back to the orginal thermodynamic states both for the system and for its enviroment. You consider a room divided into two parts, with the gas in the initial state confined in one of the two part. At a certain instant the gas flows through a hole into the second ...
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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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WEBExplain reversible and irreversible process. Describe the working of Carnot Engine. Obtain an expression for its efficiency. View Solution. Q2. Describe the working of Carnot engine and mention the expression for its efficiency. View Solution. Q3.
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WEBIrreversible Process: The process is said to be an irreversible process if it cannot return the system and the surroundings to their original conditions when the process is reversed. The irreversible process is not at equilibrium throughout the process. For example, when we are driving the car uphill, it consumes a lot of fuel and this fuel is ...
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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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WEBFeb 14, 2016 · If you impose an irreversible process on your adiabatic system like that, you won't be able to bring the system back to its initial state. You will be able to bring it back to its initial volume, but not at the same initial temperature and pressure. The entropy change will certainly not be zero. it will be greater than zero.
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WEBDefinition of Starch Gelatinization. It is a process in which the solid starch granules turn into a gelated starch when dissolved in water, followed by heating the suspension. Starch granules primarily swell as the intermolecular bonding between the starch molecules breaks under high heat (50 degrees Celsius or above), resulting in more water ...
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WEBNov 25, 2017 · Some of the relevant processes involved in understanding the second law analysis are reversible, endoreversible, and irreversible processes. Any process that occurs without leaving any change of initial state when reversed is called a reversible process and the process which cannot be reversed in such a way is called an .
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WEBIn the process of CBM exploitation, water in the coal seam is gradually discharged with the drainage and depressurization, and free methane in the porefracture system flows toward the fracture and wellbore under the effect of pressure difference, which forms a concentration difference in the coal matrix; thus the adsorbed methane is gradually .
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WEBAug 29, 2023 · Chemical Reversibility. As we have defined them here, electron transfer is a heterogenous process occurring between a solid working electrode and a solution species close to or at the surface of the electrode. To determine the extent of chemical reversibility, we must ask ourselves if the electrochemically generated species is stable to ...
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