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Scholar
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Date Posted: 6/28/2008 10:44:12 AM  Status: Closed
calculate Kp value
Course Textbook Chapter Problem
General Chemistry Chemistry (9th) by Chang 14 73P
Question Details:
When heated, ammonium carbonate decomposes as follows.

NH4CO2NH2(s) reverse reaction arrow 2 NH3(g) + CO2(g)

At a certain temperature the equilibrium pressure of the system is 0.318 atm. Calculate KP for the reaction.
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Answers:

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Sage
Karma Points: 4,311
Date Posted: 6/29/2008 11:48:57 PM  Status: Live
Asker's Rating: Lifesaver   
Response:
 
Decomposition of NH­4­CO2NH2
 
NH4CO2NH2(s) reverse reaction arrow 2 NH3(g) + CO2(g)
 
Total gas pressure is 0.318atm let x be the initial pressure of CO2 and for NH­3 it will be 2x.
3x= 0.318
x= 0.106atm
 Kp = PNH32 PCO2= (0.212)2*(0.106)= 4.76x10-3

 

                 

           

           

           

Bubbli's Comment:
Thanks a lot



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