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Heat and Thermodynamics question

2021 · 24 Feb · Shift 2 · Q48
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Heat and Thermodynamics question

2021 · 24 Feb · Shift 2 · Q48

JEE MainPhysicsHeat and ThermodynamicsMCQ+4 / −1
If one mole of an ideal gas at (P1, V1) is allowed to expand reversibly and isothermally (A to B) its pressure is reduced to one-half of the original pressure (see figure). This is followed by a constant volume cooling till its pressure is reduced to one-fourth of the initial value (B →\to→ C). Then it is restored to its initial state by a reversible adiabatic compression (C to A). The net workdone by the gas is equal to : JEE Main 2021 (Online) 24th February Evening Shift Physics - Heat and Thermodynamics Question 273 English
  1. A
    −RT2(γ−1)- {{RT} \over {2(\gamma - 1)}}−2(γ−1)RT​
  2. B
    RT(ln⁡2−12(γ−1))RT\left( {\ln 2 - {1 \over {2(\gamma - 1)}}} \right)RT(ln2−2(γ−1)1​)
  3. C
    RTln⁡2RT\ln 2RTln2
  4. D
    000
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