Thermodynamics
CBSE · Class 11 · Physics
Most important questions from Thermodynamics for CBSE Class 11 Physics board exam 2026. MCQs, short answer, and long answer questions with marks.
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Sample Questions
In an isothermal process, what remains constant?
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Temperature
An isothermal process maintains a constant temperature throughout the transformation.
What characterizes an adiabatic process?
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No heat transfer
In an adiabatic process, the system is completely insulated, preventing any heat exchange with surroundings.
What does the Second Law of Thermodynamics fundamentally restrict?
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Heat engine efficiency
The Second Law states that no heat engine can have 100% efficiency in converting heat to work.
What is a quasi-static process characterized by?
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Infinite slowness maintaining equilibrium
A quasi-static process occurs infinitely slowly, ensuring the system remains in equilibrium at every stage.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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