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Topic: Hard equilibrium constant question  (Read 5112 times)

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GaZMan

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Hard equilibrium constant question
« on: June 04, 2005, 08:30:46 AM »
PCl5 -> PCl3 + Cl2

0.60 Mol of PCl5 is introduced into a 2.00L sealed vessel which is heated to 180 degress C. when equilibrium is established the concentration of Cl2 is 0.054M. The value for K for this reaction at 180 degrees C is:
A.  0.0097
B.  0.0059
C.  0.012
D.  84
« Last Edit: June 04, 2005, 09:06:22 AM by geodome »
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Offline AWK

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Re:Hard equilibrium constant question
« Reply #1 on: June 04, 2005, 08:45:25 AM »
Calculate concentrations at the equilibrium and put them to Keq=[Cl2][PCl3]/[PCl5]
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AWK

GaZMan

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Re:Hard equilibrium constant question
« Reply #2 on: June 04, 2005, 08:52:00 AM »
question doesnt give concentration for PCl2
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Offline Donaldson Tan

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Re:Hard equilibrium constant question
« Reply #3 on: June 04, 2005, 09:07:11 AM »
do a mole balance to find the amount of Cl2 present in equilibrium
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GaZMan

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Re:Hard equilibrium constant question
« Reply #4 on: June 04, 2005, 09:11:21 AM »
can you please give instructions and method to work out the question
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GCT

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Re:Hard equilibrium constant question
« Reply #5 on: June 04, 2005, 09:58:53 AM »
First off, you need to indicate the appropriate subscripts to the equation (are there any solids, gases, liquids etc???)
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