States of ethanol and glucose in fermentation

[harry4]

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In fermentation what are the states of glucose and ethanol cos i am doing a multiple choice and one has glucose as aqueous and ethanol as aqueous and the other as glucose as solid and ethanol as liquid

i thought that glucose was aqueous and ethanol was liquid

btw are fuels such as octane liquid or aqueous
and what about ethylene

[Fortify]

Both glucose and ethanol are aqueous in fermentation.

[harry4]

thanks

[chuboy]

Originally Posted by harry4

In fermentation what are the states of glucose and ethanol cos i am doing a multiple choice and one has glucose as aqueous and ethanol as aqueous and the other as glucose as solid and ethanol as liquid

i thought that glucose was aqueous and ethanol was liquid

btw are fuels such as octane liquid or aqueous
and what about ethylene

Octane is liquid. I think they are liquids from around pentane?

Don't overlook things like temperature and pressure. Methane is gaseous, ethanol can be gaseous if the temperature is high enough, bromine is both a gas and liquid.

Solutions are always (aq).

[Marina89]

On that note, do you think that if we get a state wrong in an equation we wouldn't get the mark?

[chuboy]

Originally Posted by Marina89

On that note, do you think that if we get a state wrong in an equation we wouldn't get the mark?

Only if it got to the point where everyone was getting the basic answer, and they needed to see who knew their states correctly to distinguish the wheat from the chaff.

Also some equations we are expected to learn the states - e.g. Haber process, formation of acid rain etc.

[brenton1987]

Originally Posted by chuboy

Octane is liquid, so is ethylene.
But don't try and outdo yourself, don't overlook things like temperature and pressure. Methane is almost always gaseous and ethane can be gaseous if the temperature is high enough.

Methane boils at -161.5 ^oC, ethane at -88.6 ^oC, and ethene at -103.7 ^oC.
There wont be a time when any of them are liquid.

[chuboy]

Edited.

[Kamal15]

To answer the original question
Both ethanol and glucose are in fact aqueous
This is why ethanol that is produced through fermentation must later be distilled to obtain a purer liquid form

[GUSSSSSSSSSSSSS]

Originally Posted by harry4

In fermentation what are the states of glucose and ethanol cos i am doing a multiple choice and one has glucose as aqueous and ethanol as aqueous and the other as glucose as solid and ethanol as liquid

i thought that glucose was aqueous and ethanol was liquid

btw are fuels such as octane liquid or aqueous
and what about ethylene

glucose aqueous for fermentation (one of the conditions necessary is: moist/humid and glucose readily dissolves in water)

however ethanol is liquid,,,,ethanol and water are MISCIBLE liquids and so the final by product is an ethanol-water MIXTURE, not solution

Originally Posted by Kamal15

To answer the original question
Both ethanol and glucose are in fact aqueous
This is why ethanol that is produced through fermentation must later be distilled to obtain a purer liquid form

distillation is also used to separate MISCIBLE liquids, such as the ethanol-water mixture obtained from fermentation