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Which are true for the reaction : A22C+D?

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By Expert Faculty of Sri Chaitanya
a
if ∆H=0; Kp and α (alpha) increases with increase in temperature
b
if ∆H=+ve, Kp increases with temperature and dissociation of A2 increases.
c
if ∆H=-ve, Kp decreases with temperature and dissociation of A2 decreases.
d
Kp=4α3P1+2α2

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detailed solution

Correct option is A

A        ⇌         2C   +     D Initial                   1                        0           0 At equilibrium    1-α               2α            α Kp =(2α)2α×P∆n2=4α3P21+2α2 Use 2.303 log K2K1=∆HRT2-T1T1T2 for effect of temperature on K.


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If K1 and K2 are the equilibrium constants at temperature T1 and T2 and T2>T1 then

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