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What phase is water in in a combustion reaction?

Posted: Mon Mar 12, 2018 8:13 pm
by sofiakavanaugh
Hi,

There are some homework problems where we have to write combustion reactions, and I know the products are always CO2 and H2O, but is the water in the liquid or gas phase?



Thanks

Re: What phase is water in in a combustion reaction?

Posted: Mon Mar 12, 2018 8:19 pm
by Victoria Draper 1G
Water will usually be in its liquid phase because it is occurring at room temperature. CO2 I believe is always in the gaseous state but I think that the problem will usually give you the phase of each of the substances.

Re: What phase is water in in a combustion reaction?

Posted: Mon Mar 12, 2018 8:33 pm
by Eli Aminpour 2K
It depends. Combustion reactions vary because the definition is vague "hydrocarbons react with O2 to form water and carbon dioxide". I believe often, however, the reactants are all gaseous.