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Topic: representing enthalpy changes  (Read 7494 times)

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777888

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representing enthalpy changes
« on: January 10, 2005, 05:44:23 PM »
1.What is the eqatuion for the complete combustion of carbon?
C+O2->CO2
OR C+O2...->CO2+H2O
Does complete combustion always form CO2+H2O?

Thanks for helping! :)
« Last Edit: January 11, 2005, 09:02:41 PM by 777888 »
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Offline Mitch

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Re:representing enthalpy changes
« Reply #1 on: January 10, 2005, 07:10:50 PM »
Compustion always makes CO2 and H2O or its not called combustion.
« Last Edit: January 11, 2005, 02:37:53 PM by Mitch »
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777888

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Re:representing enthalpy changes
« Reply #2 on: January 10, 2005, 10:33:10 PM »
Quote from: Mitch on January 10, 2005, 07:10:50 PM
Compustion always makes CO2 and O2 or its not called combustion.
Isn't combustion make CO2 and H2O?
Is this a complete combustion?
C+O2->CO2
Thanks!
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Offline Donaldson Tan

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Re:representing enthalpy changes
« Reply #3 on: January 11, 2005, 12:03:23 PM »
complete combustion of hydrocarbon produces carbon dioxide and water, not carbon.
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777888

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Re:representing enthalpy changes
« Reply #4 on: January 11, 2005, 12:50:58 PM »
Quote from: geodome on January 11, 2005, 12:03:23 PM
complete combustion of hydrocarbon produces carbon dioxide and water, not carbon.
can carbon have combustion?

Combustion:
nonmetal+oxygen->non-metal oxide
carbon is a nonmteal, so the combustion of carbon is:
C+O2->CO2

true?
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Offline Donaldson Tan

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Re:representing enthalpy changes
« Reply #5 on: January 11, 2005, 12:53:30 PM »
yes. C + O2 -> CO2
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"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006

Offline Mitch

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Re:representing enthalpy changes
« Reply #6 on: January 11, 2005, 02:37:19 PM »
woops I forgot an H. Scooby snack given for the catch.
« Last Edit: January 11, 2005, 02:38:26 PM by Mitch »
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777888

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Re:representing enthalpy changes
« Reply #7 on: January 11, 2005, 03:28:37 PM »
Quote from: Mitch on January 11, 2005, 02:37:19 PM
woops I forgot an H. Scooby snack given for the catch.
What is Scooby snack  ???
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