heat of combustion per litre (1 Viewer)

[Markodonohue]

I can calculate the heat of combustion of Ethanol per mole well enough, but i need to know how to calculate the heat of combustion of ethanol per litre. Can anyone help me? i know im being a pain but i really am not good at this ethanol business.

Cheers, Mark.

Edit: Wait, do you just divide by the molar weight of the substance?

 

[Bekhit]

yeh i got a problem with that part to.i can find molar heat of combustion but after that i loose it.

 

[independantz]

You calculate how many moles is required per litre, say 2, by using n=cv then since you already have it in J/mol- you multiply it by 2 to get it in litres or however many moles one litre is.

 

[doink]

heat of combustion is measured in Joules (or kilojoules) basically to find HoC per anything you simply divide the HoC value by the value required, for instance HoC/L is HoC divided by Litres or Volume. HoC/mole = HoC divided by mols. Hence why the acquired value is give the unit J/L or J/mol