Ab2 is dissociated to form ab+b if the initial pressure is 600nm and total pressure is 800nm
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Answer:
Explanation:
The equilibrium reaction is AB
2
(g)⇔AB(g)+B(g).
AB
2
AB
B
Initial
600
0
0
Change
-x
x
x
Equilibrium
600-x
x
x
But total pressure =600−x+x+x=800 or x=200.
The equilibrium concentrations of AB
2
,AB and B are 400, 200 and 200 respectively.
The expression for the equilibrium constant becomes K
p
=
p
AB
2
p
AB
×p
B
=
400
200×200
=100 mm of Hg.
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