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Homework Help: Standard enthalpy of formation of carbon gas

  1. Mar 3, 2013 #1

    The standard enthalpy of formation of carbon gas or C(g) is the enthalpy change for the formation of 1 mole of carbon gas from its elements in their reference form which for carbon (I believe) is C(graphite).

    Now I find the following standard enthalpy of formation for carbon gas / C(g) : 716.7 kJ

    So now the formation reaction(or thermochemical equatation) is:

    C(graphite) → C(g) ΔH= 716.7 kJ

    Am I right? So if we add 716,7kJ to 1 mole of graphite ( note: not diamond) we will get carbon gas? Now carbon gas only excists at a temperature of 4827.0 °C so that means if we add 716.7 kJ it will increase the temperature up to 4827.0 °C?

    Thanks in advance!!
  2. jcsd
  3. Mar 6, 2013 #2


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    Temperature is not the equivalent of energy.
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