Free physics question bank
cyclic process its efficiency ,second law of thermodynamics questions with solutions
Practice Thermodynamics for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–7 of 7 questions
- MCQeasyThermodynamics
Which of the following processes is reversible?
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AIPMT 2005NEET Previous Year
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Two moles of an ideal gas are taken through the cyclic process abcda shown in a U–V diagram. During processes ab and cd, temperatures are 500 K and 300 K respectively. The volumes at a and d are V₀, and at b and c are 2V₀. Calculate the net heat absorbed by the system. (ln 2 = 0.69 and R = 8.3 J mol⁻¹ K⁻¹)
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AIPMT 2008NEET Previous Year
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If Q, E and W denote respectively the heat added, change in internal energy and work done in a closed thermodynamic cycle, then:
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AIPMT 2008NEET Previous Year
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A gas is taken through the cycle A → B → C → A as shown in the P–V graph. A = (2 × 10⁻³ m³, 2 × 10⁵ Pa), B = (7 × 10⁻³ m³, 6 × 10⁵ Pa), and C = (7 × 10⁻³ m³, 2 × 10⁵ Pa). What is the net work done by the gas?
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NEET 2013NEET Previous Year
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A thermodynamic system undergoes cyclic process ABCDA as shown in the P–V figure. A = (V₀, P₀), B = (2V₀,3P₀), C = (V₀,3P₀), D = (2V₀, P₀), connected in the order A → B → C → D → A. The work done by the system over one full cycle is:
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AIPMT 2014NEET Previous Year
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A thermodynamic system is taken through the rectangular cycle ABCDA shown in the P–V diagram, with A = (V, P), B = (3V, P), C = (3V,2P), and D = (V,2P). The net heat rejected by the gas during the cycle is:
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AIPMT 2012NEET Previous Year
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A thermodynamic system goes from state A to B along path ACB and is brought back to A along path BDA in the P–V diagram. The net work done during the complete cycle is given by the area:
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AIPMT 1992NEET Previous Year
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