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SECTION III : Multiple Correct Answer(s) Type
The section contains 6 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of which ONE or MORE are correct.
Q. The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure.
Which of the following statement(s) is (are) correct?
  • a)
    T1 = T2
  • b)
    T3 > T1
  • c)
    wisothermal > wadiabatic
  • d)
    ΔUisothermal > ΔUadiabatic
Correct answer is option 'A,C,D'. Can you explain this answer?
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Most Upvoted Answer
SECTION III : Multiple Correct Answer(s) TypeThe section contains 6 mu...
T1 = T2 because process is isothermal.
Work done in adiabatic process is less than in isothermal process because area covered by isothermal curve is more than the area co vered by the adiabatic curve.
In adiabatic process expansion occurs by using internal energy hence it decreases while in isothermal process temperature remains constant that’s why no change in internal energy.
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A gaseous sample is generally allowed to do only expansion/compression type of work against its surroundings. The work done in case of an irreversible expansion (in the intermediate stages, of expansion/compression the states of gases are not define d). The work done can be calculated usingdW = NextdVwhile in case of reversible process the work done can be calculated using dw = PdV where P is pressure of gas at some intermediate stages. Like for an isothermal reversible process.Since d w = P d V so magnitude of worked one can also be calculated by, calculating the area under the PV curve of the reversible process in PV diagram.Q.If four identical samples of an ideal gas initially at similar state (P0, Vo, T0) are allowed to expand to double their volumes by four different processes..I : by isothermal irreversible process II : by reversible process having equation P2V = constant III : by reversible adiabatic process IV: by irreversible adiabatic expansion against constant external pressure.Then in the graph shown the final state is represented by four different points then, the correct match can be

A gaseous sample is generally allowed to do only expansion/compression type of work against its surroundings. The work done in case of an irreversible expansion (in the intermediate stages, of expansion/compression the states of gases are not define d). The work done can be calculated usingdW = NextdVwhile in case of reversible process the work done can be calculated using dw = PdV where P is pressure of gas at some intermediate stages. Like for an isothermal reversible process.Since d w = P d V so magnitude of worked one can also be calculated by, calculating the area under the PV curve of the reversible process in PV diagram.Q.Two samples (initially under same states) of an ideal gas are first allowed to expand to double their volume using irreversible isothermal expansion against constant external pressure, then samples are returned back to their original volume first by reversible adiabatic process and second by reversible process having equation PV2 = constant then

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SECTION III : Multiple Correct Answer(s) TypeThe section contains 6 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of whichONE or MORE are correct.Q. The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure.Which of the following statement(s) is (are) correct?a)T1 = T2b)T3 > T1c)wisothermal > wadiabaticd)ΔUisothermal > ΔUadiabaticCorrect answer is option 'A,C,D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about SECTION III : Multiple Correct Answer(s) TypeThe section contains 6 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of whichONE or MORE are correct.Q. The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure.Which of the following statement(s) is (are) correct?a)T1 = T2b)T3 > T1c)wisothermal > wadiabaticd)ΔUisothermal > ΔUadiabaticCorrect answer is option 'A,C,D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for SECTION III : Multiple Correct Answer(s) TypeThe section contains 6 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of whichONE or MORE are correct.Q. The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure.Which of the following statement(s) is (are) correct?a)T1 = T2b)T3 > T1c)wisothermal > wadiabaticd)ΔUisothermal > ΔUadiabaticCorrect answer is option 'A,C,D'. Can you explain this answer?.
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