Under certain nonstandard conditions, oxidation by O2( g) of
1 mo...

Question

Under certain nonstandard conditions, oxidation by O2( g) of
1 mol of SO2( g) to SO3( g) absorbs 89.5 kJ. The enthalpy of formation
of SO3( g) is -204.2 kJ under these conditions. Find the
enthalpy of formation of SO2( g).

Accepted Answer

Hi everyone. So here we have the oxidation of nitric oxide, nitrogen dioxide to produce nitric acid and the oxidation of two moles of nitric oxide to National dioxide releases 114 kg joules of heat In national dioxide as an entropy information of 33.2 killer jewels or asked what is the entropy information? Fanatic oxide. We're gonna have N. O. Yes as L. Two. Yes because it's an oxidation reaction. It's gonna yield n. 0. 2. Yes. So the first thing we need to do is balance this. We have a nitrogen and oxygen on both sides. We have one nation over here free oxygen One night in over here and two oxygen. We have three options on the reactive side and we want to make it even We can put a two in front of an O. Can you give us two nitrogen before oxygen? So we can put a two in front of you know to I'm gonna get to nitrogen before auction over here as well. They were given the entropy of the reaction. It's gonna be negative 1 - 14. Hello jules amount because it's releasing heat and then entropy information of nitrogen dioxide. It's 33 like to individuals promote we know that the entropy of the reaction. It was the sound of the number of malls time to interview information, other products minuses saM times the number of malls time to interview information. Other reactant. We're gonna have the entropy of the reaction equal to two. Time to interfere information of nation dioxide minus two. Time to interfere information of nitric oxide Does it interfere? Information of oxygen gas. They're gonna have -114. Hello jules? Permal? It was too From 33.2 Phil jones promote minus two times of entropy information of magic oxide which we're looking for zero joules per mole For the info information of oxygen gas We're gonna have negative 180 0.4 is paramount. It's a negative two times of entropy information of nitric oxide. Hope you divide both sides by -2. For the information of metric oxide We're gonna get positive 90. Like to Phil jones promote. Thanks for watching my video and I hope it was helpful.

Under certain nonstandard conditions, oxidation by O2( g) of 1 mol of SO2( g) to SO3( g) absorbs 89.5 kJ. The enthalpy of formation of SO3( g) is -204.2 kJ under these conditions. Find the enthalpy of formation of SO2( g).

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