Consider the following equilibrium:2NOClg +2NOgCl2g= ΔG041.kJNow suppose a reaction vessel is filled with 9.13atm of nitrosyl chloride NOCl and 3.32atm of nitrogen monoxide NO at 934.°C. Answer the following questions about this system:Under these conditions, will the pressure of NO tend to rise or fall? rise fall Is it possible to reverse this tendency by adding Cl2?In other words, if you said the pressure of NO will tend to rise, can that be changed to a tendency to fall by adding Cl2? Similarly, if you said the pressure of NO will tend to fall, can that be changed to a tendency to rise by adding Cl2? yes no If you said the tendency can be reversed in the second question, calculate the minimum pressure of Cl2 needed to reverse it.Round your answer to 2 significant digits.atm

The given reaction is : 2NOCl (g) ⇌ 2NO(g) + Cl2(g) ΔG°=41.kJ Initial pressure of NOCl=9.14 atmInitial pressure of NO=3.32 atm(a) Initially, there is no Cl2 present in the reaction vessel. So, to attain equilibrium, some amount of NOCl will start to convert to NO and Cl2. Thus, the pressure of NO will tend to rise. (b) Yes, the addition of Cl2 can reverse the reaction according to the Le Chatelier's principle. The addition of Cl2 will shift the equilibrium to the backward direction and some of the NO and Cl2 will start to convert to NOCl. In this case, the pressure of NO will tend to fall.(c) Given that : ∆G°=41 kJTemperature=934°C=(934+273)K=1207 K Thus, the expression for ∆G° can be given as : ∆G°=-RTlnKHere R is gas constant=8.314 J/K.molSo,lnK=-41×103J8.314 J/K.mol×1207KlnK=-4.086On solving, K=0.0168Now, the equilibrium expression for the reaction can be given as : K=PNO2×PCl2PNOCl20.0168=3.322×PCl29.142PCl2=0.0168×9.1423.322⇒0.13 atm

Answered: Consider the following equilibrium:…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Consider the following equilibrium:

2NOClg

+2NOgCl2g

= ΔG041.kJ

Now suppose a reaction vessel is filled with

9.13atm

of nitrosyl chloride

NOCl

and

3.32atm

of nitrogen monoxide

934.°C

. Answer the following questions about this system:

Under these conditions, will the pressure of NO tend to rise or fall?	rise
fall
Is it possible to reverse this tendency by adding Cl2 ? In other words, if you said the pressure of NO will tend to rise, can that be changed to a tendency to fall by adding Cl2 ? Similarly, if you said the pressure of NO will tend to fall, can that be changed to a tendency to rise by adding Cl2 ?	yes
no
If you said the tendency can be reversed in the second question, calculate the minimum pressure of Cl2 needed to reverse it. Round your answer to 2 significant digits.	atm

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