Question

4. Consider the oxidation of ammonium (NH) to nitrate (NO) by molecular oxygen: NH, +2O2 (g) <> NO + 2 H + HẠO From thermodynamic considerations, calculate the equilibrium constant K at 25°C. Is this reaction thermodynamically favorable? Justify your answer.

Why do you need more information. I could not ınderstand what ı say for you to solve this problem

Answer 1

Ahswert We chare the of ammonium a ve the chemical reaction unicum ( Noci") to nitoete C Nog) is falling place in which Oxiclatione the reaction is w illen as what caq) + 202 (9) Nog raq) + Q utraq) + Hyorej o such a reaction the equilibrium constant k is given by the following formula [Nog ] [auty? 1. - © for Inhet Now in order to calculate the equilibrium constant we ahould have the values of the concentrations of the species needed in the eah ② . Thus we can't calculate the equilibrium constant for such case rathero it can be expressed in just a formula form. * Now next question is whether this reaction is there mody nami cally favourable For this we need to calculate change in the gibbs free energy i.e.AG it is given by AG=0 for equilibrium CS Scanned with CamScannd De -Riin keq

26" Stemnoland gibbs fore Chergy_chan - Data: De where R* Gus constant = 8.314 IMOHET keqe equilibrium constant To Temperature Lin our case it is 25°09 Now in our case we don't know the value of keq chence we can't calculate the LG AG= - RT enkea Unknown further if after calculation a> if AGTO then we can say that the reaction is the modynamically favourable. by if AGYO then we can say that the reaction is the omodynamically unfavourable" c) if AG=0 then reaction is in equilibrium o the overall for equilibrium reacth 46=0 and we can't comment whether the reaction is thermodynamically favourable or not. And for calculate on of keq we ne ced more information Thank you Note: I have Sa hichom sin ne ot purposly written tell us the info the formula for Abo about reach favorability,