rthmjohn Posted May 2, 2005 Posted May 2, 2005 I need a step-by-step guide for calculating the reaction enthalpy of thermite at 2000 degrees celsius. Can somebody help?
Silencer Posted May 2, 2005 Posted May 2, 2005 I imagine the people smarter than me will want to know what sort of thermite.
akcapr Posted May 2, 2005 Posted May 2, 2005 Calculate the energy needed to break the bonds in the reactant molecules, then claculate the energy released in the making of new bonds in the produced molecule, Al2O3, then find the sum of the energy needed to break the bonds and the energy needed to make then new bonds. And also, multiply each bonds strength/energy by the numebr of moles of it that is in the reaction. [edit]- the alumina part is if ur doing the traditional rust and AL.
rthmjohn Posted September 20, 2005 Author Posted September 20, 2005 its -852 kJ/mol for ferroaluminum, but what i don't get is how its so powerful if acetylene's is -2599.2 kj/mol. Can someone explain why thermite is so imensely powerful? Is the copper oxide/aluminum thermite as exothermic as acetylene?
rthmjohn Posted October 4, 2005 Author Posted October 4, 2005 Does reaction enthalpy have anything to do with how hot a substance gets? Does thermite burn hotter than acetylene?
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