Question

CS is used in the manufacture of rayon. Ca gas can be made in an endothermic gas - phase reaction between Soz & CO2. Oz gas is also produced in the reaction a. Write balanced equation for this reaction b. Equilibrium & expression c. An equilibrium mixture of these gases was made by mining sulfur trioside & Co2. These equilibrium mixture consisted of 0.028 mol of Ch 0.022 mol of SO3, 0.014 mol of CO2 & an unknown amount of Oz in a 202 vessel at 4001 ci. Calculate the no. of moles of O₂ in equilibrium mixture cii calculate value of equilibrium constant at 4ook

Answer 1

- @ Balanced equation _2503 (9) + Coz (4 529) +40214- (b) Equilibrum expression Equilibriem constant for the above equilibrécem can be written as, Kc = [CS₂] [₂] --1) [ S03]2[Coz] 1 (c) given : 2503 t co CS2 + 402 initially (a) moles b moles - equilib (1-21) (6-2) n ya 0028 given : x = 0.028 moles (moles of cs2) ti so, moles of O₂ = 42 = uxo .028 = 0·112 moles cio ao volume = 20 L So [CS] - modes of CS₂ = Volume [OJē moles of O2 = - Volume [58] = moles of son 5 0.022 volume 20

[cog] = moles of co2 = 0.014 Volume 20 so , tc from (1) Ke = 0,028) 6:16294 70:07272 ( 19,2014 Ke = 4:4X106 XL 678 x 10ct Hoo Ike = 1.62X10-3 mel² lit = 10.028 70:1123951 10.0221 (0914) I