Confused about Heat of Combustion

Moderators: Chem_Mod, Chem_Admin

Andrew F 2L
Posts: 103
Joined: Sat Aug 17, 2019 12:17 am

Confused about Heat of Combustion

Postby Andrew F 2L » Sun Feb 09, 2020 12:32 am

In one of my TA's worksheet, one of her equations was q = Heat of combustion of ethane times the number of moles of ethane. Is this a formula that we should know? I am confused how she derived it

andrewcj 2C
Posts: 102
Joined: Thu Jul 11, 2019 12:17 am

Re: Confused about Heat of Combustion

Postby andrewcj 2C » Sun Feb 09, 2020 12:51 am

I don't think you need to memorize this. This is just saying the heat of combustion for x moles of ethane = moles of ethane * (heat of combustion/1 mole of ethane).

Kayla Maldonado 1C
Posts: 107
Joined: Sat Aug 17, 2019 12:16 am
Been upvoted: 1 time

Re: Confused about Heat of Combustion

Postby Kayla Maldonado 1C » Sun Feb 09, 2020 12:59 am

She may be referring to the equation
q=n*C*(delta T)
where q is heat transferred, n is # of moles, C is the molar heat capacity, and delta T is change in temperature.


Return to “Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)”

Who is online

Users browsing this forum: No registered users and 1 guest