Q.
At constant pressure P, A dissociates on heating according to the equation A(g)⇌B(g)+C(g) The equilibrium partial pressure of A at T K is 19P , the equilibrium constant Kp at T K is
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a
89P
b
649P
c
169P
d
9P
answer is C.
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Detailed Solution
PB=PC PA+PB+PC=P ⇒ PB+PC=P−19P=89P ∴ PB=PC ∴ PB=PC=12×89P=49P Kp=PB×PCPA ⇒ Kp=49P×49P19P=169P
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