Question

Consider the following equilibrium: N2(g) + 3H2 (g) = 2NH3(g) AG°= - 34. kJ Now suppose a reaction vessel is filled with 2.01 atm of nitrogen (N) and 5.74 atm of ammonia (NH) at 812. °C. Answer the following questions about this system: rise Under these conditions, will the pressure of NH2 tend to rise or fall? fall Is it possible to reverse this tendency by adding H,? x 6 ? yes In other words, if you said the pressure of NHz will tend to rise, can that be changed to a tendency to fall by adding H,? Similarly, if you said the pressure of NHz will tend to fall, can that be changed to a tendency to rise by adding HZ? O no If you said the tendency can be reversed in the second question, calculate the minimum pressure of H, needed to reverse it. Round your answer to 2 significant digits. atm

Answer 1

48.2 (5.745 120 X 3 IME (5.74)? (2.01) x4329 - 32.9476 87.0129 Downloa eta ena = 0.3987; pl PH₂ = 0.72 atm Under these conditions, will be the pressure lorise of NH3 tend to rise or fall ? to fall Is it possible to reverse this tendency by adding til In other words, it you said the pressure of NH Wil tend to nipe can that be changed to a tendency to royes fall baj adding Hz? Similarly if you said the pressual o No of NH₃ will tendency to fall , can that be changed to à tendency to ripe by adding H₂ ? If you said the tendency can be reversed in the second question , calculate the minimum pressure of 0.7297ml He Needed to reverse it.

AG' = -34 KI. . Convert unit from KJ tot AG = -34kJ X10001/161 AG = - 34000 DGP - LRTinke :-34000= -8.314 Trolls X ( 812 + 273.15) K x Inko -- 8.314 T/mol kx 1085.85 K x Inkp 734000=+9022.7685 enkp') Inkp = 3.7626 tsp= to-37676 logkp = 1.6364 Kp = 43.29 2.09 ) Kp = Prinz