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Topic: Kp  (Read 4087 times)

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Offline _cheers

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Kp
« on: April 16, 2007, 08:14:43 PM »
Suppose Kp is 81 at some temperature. In one experiment, the flask was charged with initial pressure, P atm, of PCl5 (no other gases) and equil established. What would the pressure have to be in order to make 10% of PCl5 decompose?

PCl3 + Cl2 <----> PCl5  (all gaseous)

HELP??? Ice table? can I make any assumptions? Sorry, I dont even know where to start!
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Offline Yggdrasil

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Re: Kp
« Reply #1 on: April 16, 2007, 10:27:39 PM »
In terms of the original amount of PCl5, how much products and reactants would you have at equilibrium if 10% of the PCl5 were to decompose?
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Offline _cheers

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Re: Kp
« Reply #2 on: April 17, 2007, 01:59:34 AM »
Well, I'd have 90% PCl5, and 10% products?
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Offline Yggdrasil

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Re: Kp
« Reply #3 on: April 17, 2007, 03:40:42 AM »
And how would that look if you plugged it into the equation for Kp?
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Offline _cheers

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Re: Kp
« Reply #4 on: April 17, 2007, 01:43:13 PM »
hmmm...I'll get back to you on that  ;D
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