The Man who Riddles

Chemistry Level 2

After sending the Mayor of Gotham to the hospital, Batman goes back to the Mayor's office to investigate.

He finds the Riddler waiting for him and he is ready to tell Batman about the person responsible for the incident, only if Batman answers his question

"What is the standard enthalpy of formation of the compound present in pencil lead ?

0 kJ/mol 0.01 kJ/mol 1.9 kJ/mol -1.9 kJ/mol

Vitthal Yellambalse by Vitthal Yellambalse , 22, India

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1 solution

The compound present in pencil lead is graphite.

Graphite is the most thermodynamically stable isotope of carbon, and because of this the value of its standard enthalpy of formation is 0

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