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12 . kinetic theory of gases — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics12 . kinetic theory of gases1 Mark
MCQ
A sealed container with negligible coefficient of volumetric expansion contains helium (a monoatomic gas). When it is heated from $300\, K$ to $600\, K,$ the average $K.E.$ of helium atoms is
  • A
    Halved
  • B
    Unchanged
  • ✓
    Doubled
  • D
    Increased by factor $\sqrt 2 $
✓

Answer

Correct option: C.
Doubled
c
Kinetic energy $\propto$ temperature,
​so if the temperature is doubled, its kinetic energy will also be doubled.

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