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The second law of thermodynamics: reversible and irreversible processes Revision for JEE

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Revision checklist

  1. 1.Core idea: The second law of thermodynamics: reversible and irreversible processes
  2. 2.Relates to other subtopics in Thermodynamics
  3. 3.Zeroth and first law, internal energy
  4. 4.Isothermal and adiabatic processes
  5. 5.Master The second law of thermodynamics: reversible and irreversible processes definitions and standard results
  6. 6.Solve 20 timed MCQs for The second law of thermodynamics: reversible and irreversible processes

Syllabus context

Part of Thermodynamics in JEE Main Physics.

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Q1PhysicsUnit 8: Thermodynamics
Assertion In an ideal thermodynamically reversible process, the energy from work performed by or on the system would be maximized, and that from heat would be minimized. Reason A reversible process is a process whose direction can be "reversed" by inducing infinitesimal changes to some property of the system via its surroundings, while not increasing entropy.
Q2PhysicsUnit 8: Thermodynamics
Natural processes are:
Q3PhysicsUnit 8: Thermodynamics
From below which are the disadvantages of nuclear energy?
Q4PhysicsUnit 8: Thermodynamics
Assertion Reversible systems are difficult to find in real world. Reason Most processes are dissipative in nature.
Q5PhysicsUnit 8: Thermodynamics
A process is said to be reversible if:
Q6PhysicsUnit 8: Thermodynamics
Which of the process is the reversible process?
Q7PhysicsUnit 8: Thermodynamics
A reversible process changes the state of a system in such a way that the net change in the combined entropy of the system and its surroundings is :
Q8PhysicsUnit 8: Thermodynamics
A reversible engine takes heat from a reservoir at 527∘C527^{\circ} \mathrm{C} and gives out heat to asin⁡ka \sin k at 127∘127^{\circ} C. How many Joules/s must it take from the reservoir to perform useful mechanical work at the rate of 750W?750 W ?

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Follow the checklist on this page, revise formulas daily, and attempt mixed MCQs every 2–3 days.

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