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Video instructions and help with filling out and completing Who Form 2220 Calculator

Instructions and Help about Who Form 2220 Calculator

In this video we'll calculate an enthalpy our chemical reaction process the one that I've selected is that we're going to be of butane gas because butane is a hydro does contain quite a bit of chemical potential energy so when it reacts with oxygen this energy can be given off in an exothermic process the products of the reaction are going to be carbon dioxide and water and because there's quite a bit of energy given off we can record that here now in this problem we're actually going to calculate the exact amount of energy given off by this reaction process in order to do that we need to have this value right here now this is telling us that we are looking at the change in enthalpy for combustion of butane the value for this is two thousand eight hundred seventy seven point five kilojoules per mole so this is referring to if we burn one mol of butane how much energy is going to be given off the negative sign here is actually telling us that this is an exothermic process where the energy content of the products is going to be lower than the energy content of the reactions so the enthalpy change is going to be negative again if we were to interpret an energy diagram we can see that the energy content for butane would be at a higher point the energy content of the products the carbon dioxide and water is at a lower level so when we calculate Delta H it would actually work out to be a negative value again this is letting us know that we're looking at an exothermic reaction process this problem really boils down to doing some simple dimensional analysis in order to do that we...

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