p-Block elementsHard

Question

Thermodynamically, the most stable form of carbon is

Options

A.Diamond
B.Graphite
C.Fullerenes
D.Coal

Solution

Graphite is thermodynamically, the most stable allotrope of carbon. That is why
ᐃfHo (graphite) is taken as zero.
ᐃfHo (diamond) = + 1.90kJ mol-1
ᐃfHo (fullerene)= + 38.1 kJ mol-1

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