What is the enthelpy of combustion of magnesium?

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SUMMARY

The enthalpy of combustion of magnesium (Mg) is determined through the reaction with oxygen (O2) to form magnesium oxide (MgO). The specific value for this enthalpy is -601 kJ, which can be obtained by referencing the enthalpy of formation for MgO. This value is critical for understanding the energy changes involved in combustion reactions.

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  • Understanding of thermodynamics concepts, specifically enthalpy.
  • Familiarity with chemical reaction equations.
  • Knowledge of heat of formation values.
  • Ability to reference scientific literature or textbooks for thermodynamic data.
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  • Learn how to calculate enthalpy changes using Hess's law.
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rum2563
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[SOLVED] What is the enthalpy of combustion of magnesium?

Homework Statement


Determine the enthalpy of combustion of Magnesium.

Mg + 1/2O2 --> MgO

magnesium + half oxygen -> magnesium oxide.


The Attempt at a Solution



I am not sure how to calculate this since I don't know where to start. Is there a specific value for this? Or, is there a way we could get these values from a chart or somewhere?

I need help. Thanks.
 
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Review the definition of heat of formation and then reexamine your combustion equation.
 
rum2563 said:
Is there a specific value for this?
They should be at the back of your book or try the Index if all fails.
 
Thanks very much guys for your responses. I found it on the net and basically I had to look for enthalpy of formation of MgO to get my answer. It's -601 kJ.
 

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