Chemical Equilibrium

according to le chatelier's principle when inert gas is added at constant pressure then the reaction move in those direction in which no. of moles is greator so reaction move backward direction and so3 convert into so2 and 1/2o2

No change in partial pressure because total gaseous pressure is constant So, no effect on equilibrium Effect on equilibrium will be when inert gas take part in reaction So option 1

But this is mentioned inert gas is added at constant pressure volume will increase and where there is more number of moles there will be shift so no of moles is less in product side and more in reactant side so rxn moves towards left and product would be less so 2