Why is enthelpy of combustion 0Kjmol-1 for oxygen

  • #1

Daniel2244

125
5

Homework Statement


Why is enthalpy of combustion 0KJmol-1 for oxygen?
I need to know this for my exam coming up soon.

Homework Equations


The enthalpy change when 1 mole of a substance is burnt in excess oxygen under standard states under standard conditions.

The Attempt at a Solution


Oxygen requires 0 energy to form as it is a natural element.
 

Answers and Replies

  • #2
By definition I would say. II doesn't burn, it stays unchanged.
 
  • #3
Borek said:
By definition I would say. II doesn't burn, it stays unchanged.
That makes sense. Thanks for the help.
 

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