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5. Thermodynamics and thermochemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
An ideal gas at constant temperature and pressure expands, then its
  • ✓
    Internal energy remains same
  • B
    Internal energy decreases
  • C
    Internal energy increases
  • D
    Entropy first increases and then decreases
✓

Answer

Correct option: A.
Internal energy remains same
(a)At constant $T$ and $P$ internal energy of ideal gas remains unaffected.

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