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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
One mole of an ideal gas at $300\, K$ is expanded isothermally from an initial volume of $1$ litre to $10$ litres. The value of $\Delta E$ for this process is $(R = 2\, cal\, mol^{-1}\, K^{-1})$
  • A
    $163.7\, cal$
  • B
    zero
  • C
    $138.1\, cal$
  • ✓
    $9$ litre atm
✓

Answer

Correct option: D.
$9$ litre atm
d
Change in internal energy $(\Delta E)$ is zero during isothermal expansion of a gas.

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