Question

Phosgene is a deadly gas and its use in warfare has been outlawed. The gas decomposes at elevated temperature:

COCl₂(g) ⇄ CO(g) + Cl₂(g)          K_eq 8.3 × 10^-4 at 352°C

What are the pressures at equilibrium if a 2.55 L metal container is charged with 2.00 bar of phosgene at 25°C and then heated to 352°C?

Eignment FULL SCREEN PRINTER VERSION BACK NEXT Chapter 14, Question 51 Phosgene is a deadly gas and its use in warfare has been outlawed. The gas decomposes at elevated temperature: COCI2(g) = CO(g) + Cl2(g) Keg 8.3 x 10-4 at 352°C What are the pressures at equilibrium if a 2.55 L metal container is charged with 2.00 bar of phosgene at 25°C and then heated to 352°C? bar (Poleg = (PCIz)eq = bar (PCociz)eq = bar Click if you would like to Show Work for this question: Open Show Work LINK TO TEXT

Answer 1

(p_CO​​​​​​)_eq = (p_Cl2)_eq = 4.03×10^-2bar

(p_COCl2)_eq = 1.96 bar

Change : COU, 9) = CO (9) + (1,9) quitial : 2.00 - Equilibrium: 2.00 -x Kee = (Pcoder (ander (Pcock) er 8.3x10" = (x) (x) (2:03 – x) 16.6x10° -(8-3x104)x = x2 or x? +(813x104)x – 1616x16" zo or x? +0.000834 -0.00166 =0 - solving the quadratic equation gives x = 0.04033 = 4:03x10-2 Thus, (Peoleq = x= 4:03x10 bar (Parleq = x = (4.03 x10 bar = 2:00-2 ' = 2:00-4:03x10² = (1.96) ban