Thermodynamically most stable allotrope of carbon is

Thermodynamically most stable allotrope of carbon is
  1. Graphite
  2. Diamond
  3. Fullerene
  4. Coke

Solution

Thermodynamic stability order :- Graphite $>$ Diamond $>$ Fullerene $>$ Coke $\Delta \mathrm{H}^{\circ}$ (allotropic transformation) graphite to diamond $=+1.9 \mathrm{~kJ} \mathrm{~mol}^{-1}$.

Asked in: AP EAMCET 2023 (18 May Shift 1)

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