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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
The specific heat of a gas at constant volume is $21.2\, J/mole/°C.$ If the temperature is increased by $1°C$ keeping the volume constant, the change in its internal energy will be ...... $J$
  • A
    $0$
  • ✓
    $21.2 $
  • C
    $42.2 $
  • D
    $10.6 $
✓

Answer

Correct option: B.
$21.2 $
b
$\Delta U = \mu \,{C_V}\Delta T = 1 \times 21.2 \times 1 = 21.2\,J$

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