TS EAMCET 20-July-2022 Shift 1 Solved Paper

Graphite is the most stable state of carbon and its ∆Hf∘ is considered as zero.
( ∵ has more van der Waals' force) also ∆Hf∘ for C60>∆Hf∘ for diamond.
∆Hf∘ values of graphite, diamond and C60 are 0,1.9 and. 38.1‌kJ‌mol−1 and ∆Hf∘ values are in order.
Fullerene > Diamond > Graphite.