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

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
For conversion $C$ (graphite) $→ C$ (diamond) the $\Delta S$ is
  • A
    Zero
  • B
    Positive
  • ✓
    Negative
  • D
    Unknown
✓

Answer

Correct option: C.
Negative
(c)Conversion of graphite into diamond is an endothermic reaction. So, heat of diamond is higher than that of graphite. But $\Delta S$would be negative for the conversion of graphite into diamond.

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