standard enthalpy of combustion

shrek · #1 Jun 23, 2007, 02:29 PM

here's the problem

THE HEAT OF COMBUSTION FOR 1 MOLE OF CARBON TO CARBON DIOXIDE IS -410 KJ. HOW MANY KJ'S OF HEAT WOULD BE LIBERATED FROM THE COMPLETE COMBUSTION OF 60.0 G OF CARBON?

tickle · Jun 23, 2007, 04:06 PM

are you talking about nuclear energy ?

crazygirl13455 · Jun 23, 2007, 08:14 PM

if heat of comubustion and heat of fusion are the same thing then it should be 24600kJ

crazygirl13455 · Jun 24, 2007, 07:50 PM

ok. work: if it is the heat of fusion that means that the q (or heat)= mHf (mass x heat of fusion) so -410x60 = -24600 [i forgot the negative in my first answer] the negative i'm pretty sure means it's exothermic



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