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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
The entropy of a sample of a certain substance increases by $0.836\,J\,K^{-1}$ on adding reversibly $0.3344\,J$ of heat at constant temperature. The temperature of the sample is.....$K$
  • A
    $2.5$
  • B
    $0.3$
  • C
    $0.016$
  • ✓
    $0.4$
✓

Answer

Correct option: D.
$0.4$
d
$\Delta S = \frac{{\Delta H}}{T};\,T = \frac{{\Delta H}}{{\Delta S}} = \frac{{0.3344}}{{0.836}} = 0.4\,K$

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