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A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:
- a)10 J of the work will be done by the gas
- b)6 J of the work will be done by the gas
- c)10 J of the work will be done by the surrounding on gas
- d)6 J of the work will be done by the surrounding on gas
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
A gas undergoes change from state A to state B. In this process, the h...
Explanation:
Given:
- Heat absorbed by the gas from state A to state B = 5 J
- Work done by the gas from state A to state B = 8 J
- Heat evolved by the gas from state B to state A = 3 J
First Process: State A to State B
In this process, the gas absorbs 5 J of heat and does 8 J of work. This indicates that the system gains energy in the form of heat and does work on its surroundings.
Second Process: State B to State A
In this reverse process, the gas evolves 3 J of heat. Since the direction of heat flow is opposite to the first process, it indicates that the system loses energy in the form of heat.
Calculation of Work Done:
The work done during the reverse process can be calculated using the First Law of Thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
ΔU = Q - W
Where:
ΔU is the change in internal energy
Q is the heat added to the system
W is the work done by the system
In this case, as the gas is brought back to state A, the change in internal energy is zero (ΔU = 0), since the gas returns to its initial state. Therefore, the work done by the gas during the reverse process can be calculated as:
W = Q
Since the heat evolved is 3 J, the work done by the gas (W) is also 3 J.
Conclusion:
Hence, in the reverse process from state B to state A, 6 J of work will be done by the gas. Therefore, the correct answer is option 'B'.
Given:
- Heat absorbed by the gas from state A to state B = 5 J
- Work done by the gas from state A to state B = 8 J
- Heat evolved by the gas from state B to state A = 3 J
First Process: State A to State B
In this process, the gas absorbs 5 J of heat and does 8 J of work. This indicates that the system gains energy in the form of heat and does work on its surroundings.
Second Process: State B to State A
In this reverse process, the gas evolves 3 J of heat. Since the direction of heat flow is opposite to the first process, it indicates that the system loses energy in the form of heat.
Calculation of Work Done:
The work done during the reverse process can be calculated using the First Law of Thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
ΔU = Q - W
Where:
ΔU is the change in internal energy
Q is the heat added to the system
W is the work done by the system
In this case, as the gas is brought back to state A, the change in internal energy is zero (ΔU = 0), since the gas returns to its initial state. Therefore, the work done by the gas during the reverse process can be calculated as:
W = Q
Since the heat evolved is 3 J, the work done by the gas (W) is also 3 J.
Conclusion:
Hence, in the reverse process from state B to state A, 6 J of work will be done by the gas. Therefore, the correct answer is option 'B'.
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A gas undergoes change from state A to state B. In this process, the h...
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A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:a)10 J of the work will be done by the gasb)6 J of the work will be done by the gasc)10 J of the work will be done by the surrounding on gasd)6 J of the work will be done by the surrounding on gasCorrect answer is option 'B'. Can you explain this answer?
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A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:a)10 J of the work will be done by the gasb)6 J of the work will be done by the gasc)10 J of the work will be done by the surrounding on gasd)6 J of the work will be done by the surrounding on gasCorrect answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:a)10 J of the work will be done by the gasb)6 J of the work will be done by the gasc)10 J of the work will be done by the surrounding on gasd)6 J of the work will be done by the surrounding on gasCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:a)10 J of the work will be done by the gasb)6 J of the work will be done by the gasc)10 J of the work will be done by the surrounding on gasd)6 J of the work will be done by the surrounding on gasCorrect answer is option 'B'. Can you explain this answer?.
A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:a)10 J of the work will be done by the gasb)6 J of the work will be done by the gasc)10 J of the work will be done by the surrounding on gasd)6 J of the work will be done by the surrounding on gasCorrect answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:a)10 J of the work will be done by the gasb)6 J of the work will be done by the gasc)10 J of the work will be done by the surrounding on gasd)6 J of the work will be done by the surrounding on gasCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:a)10 J of the work will be done by the gasb)6 J of the work will be done by the gasc)10 J of the work will be done by the surrounding on gasd)6 J of the work will be done by the surrounding on gasCorrect answer is option 'B'. Can you explain this answer?.
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ample number of questions to practice A gas undergoes change from state A to state B. In this process, the heat absorbed and work done by the gas is 5 J and 8 J, respectively. Now gas is brought back to A by another process during which 3 J of heat is evolved. In this reverse process of B to A:a)10 J of the work will be done by the gasb)6 J of the work will be done by the gasc)10 J of the work will be done by the surrounding on gasd)6 J of the work will be done by the surrounding on gasCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice JEE tests.
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