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CBSE Class 11 Physics
First + second laws, heat engines, Carnot cycle.
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Open NCERT chapter ↗5 multiple-choice questions. Pick an option — instant feedback + one-line explanation. Answers don't leave your browser.
1First law of thermodynamics: ΔU =
2In isothermal process, change in internal energy is:
3Adiabatic process means:
4Carnot engine has efficiency:
5Second law of thermodynamics is about:
Answer all 5 to submit.
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