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Water is heated at atmospheric pressure from 40°C to 80°C using two different processes. In process I, the heating is done by a source at 80°C. In process II, the water is first heated from 40°C to 60°C by a source at 60°C, and then from 60°C to 80°C by another source at 80°C. Identify the correct statement.
- a)Enthalpy change of water in process I is greater than enthalpy change in process II
- b)Enthalpy change of water in process II is greater than enthalpy change in process I
- c)Process I is closer to reversibility
- d)Process II is closer to reversibility
Correct answer is option 'D'. Can you explain this answer?
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Water is heated at atmospheric pressure from 40C to 80C using two diff...
D is the correct answer.
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-Reversibility is one of the hardest concepts in thermodynamics. A process is reversible if its direction can be reversed at any point by an infinitesimal change in external conditions.
-The change in enthalpy is positive, and heat is absorbed from the surroundings by the reaction. Whether a reaction is endothermic or exothermic depends on the direction that it is going; some reactions are reversible, and when you revert the products back to reactants, the change in enthalpy is the opposite.
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Water is heated at atmospheric pressure from 40C to 80C using two diff...
Explanation:
Reversibility of a process can be determined by the amount of entropy produced during the process. A reversible process is one in which the entropy produced is zero. In practical terms, it means that the process can be reversed without any loss of energy. A completely irreversible process, on the other hand, is one in which the entropy produced is maximum.
Process I: In process I, the water is heated directly from 40C to 80C by a source at 80C. This process is irreversible because there is a temperature difference between the source and the water. The irreversibility of the process results in the production of some entropy.
Process II: In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. This process is more reversible than process I because the temperature difference between the source and the water is lower. The lower temperature difference results in less entropy production.
Enthalpy change: The enthalpy change of a substance is the heat absorbed or released by the substance during a process. The enthalpy change of water in process I and process II can be calculated using the formula:
ΔH = mCpΔT
where ΔH is the enthalpy change, m is the mass of the substance, Cp is the specific heat of the substance, and ΔT is the temperature change.
Since the mass and specific heat of water are constant, the enthalpy change of water in process I and process II depends only on the temperature change. The temperature change in both processes is the same, i.e., 40C. Therefore, the enthalpy change of water in process I and process II is the same.
Conclusion:
Process II is more reversible than process I because the temperature difference between the source and the water is lower. However, the enthalpy change of water in both processes is the same because the temperature change in both processes is the same. Therefore, option D is the correct answer.
Reversibility of a process can be determined by the amount of entropy produced during the process. A reversible process is one in which the entropy produced is zero. In practical terms, it means that the process can be reversed without any loss of energy. A completely irreversible process, on the other hand, is one in which the entropy produced is maximum.
Process I: In process I, the water is heated directly from 40C to 80C by a source at 80C. This process is irreversible because there is a temperature difference between the source and the water. The irreversibility of the process results in the production of some entropy.
Process II: In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. This process is more reversible than process I because the temperature difference between the source and the water is lower. The lower temperature difference results in less entropy production.
Enthalpy change: The enthalpy change of a substance is the heat absorbed or released by the substance during a process. The enthalpy change of water in process I and process II can be calculated using the formula:
ΔH = mCpΔT
where ΔH is the enthalpy change, m is the mass of the substance, Cp is the specific heat of the substance, and ΔT is the temperature change.
Since the mass and specific heat of water are constant, the enthalpy change of water in process I and process II depends only on the temperature change. The temperature change in both processes is the same, i.e., 40C. Therefore, the enthalpy change of water in process I and process II is the same.
Conclusion:
Process II is more reversible than process I because the temperature difference between the source and the water is lower. However, the enthalpy change of water in both processes is the same because the temperature change in both processes is the same. Therefore, option D is the correct answer.
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Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer?
Question Description
Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer?.
Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
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Here you can find the meaning of Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Water is heated at atmospheric pressure from 40C to 80C using two different processes. In process I, the heating is done by a source at 80C. In process II, the water is first heated from 40C to 60C by a source at 60C, and then from 60C to 80C by another source at 80C. Identify the correct statement. a)Enthalpy change of water in process I is greater than enthalpy change in process II b)Enthalpy change of water in process II is greater than enthalpy change in process I c)Process I is closer to reversibility d)Process II is closer to reversibilityCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice GATE tests.
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