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Topic: energy enthalpy trouble  (Read 4308 times)

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mikeloya

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energy enthalpy trouble
« on: March 30, 2006, 04:58:47 PM »
Ok the question I am trying to solve is:

C3H8 + O2 -> CO2 + H2O  delta H = +654 kJ

How much energy is generated if 5.4 g of C3H8 are reacted?

Ok so what I have done is converted the 5.4g into mols of C3H8, now can i multiply it by the deltah H to give me the answer?
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Offline Albert

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Re:energy enthalpy trouble
« Reply #1 on: March 31, 2006, 07:09:12 AM »
Yes, exactly.
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engware

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Re: energy enthalpy trouble
« Reply #2 on: April 19, 2006, 04:13:01 PM »
Hi there:

But the chemical reaction equation, as written, is not balance -- LHS <> RHS i terms of C, H2  and O2 ...

Thanks,

Gordan
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Offline Donaldson Tan

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Re: energy enthalpy trouble
« Reply #3 on: May 26, 2006, 11:32:47 PM »
C3H8 + 5 O2 => 3CO2 + 4H2O
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