The equilibrium constant in term of partial pressure K P of the reaction A (g) + 2B (g) 
X (g) + 3 Y (g) increases threefold when the temperature is raised from 27ºC to 37ºC. The effect of temperature on K P is given by the equation,
log 
= 
⎯→ equation (1)
The equilibrium constant (K c ) in terms of molar
concentration also varies with temperature. Δ Gº of
reaction at 298 K is given as – 11.4 kJ.
(i) The correct relation between 
and 
applicable to reaction under the given condition is –
= log 3 – log 1.03 decreases by 
times of the initial K p 10 1
= log 2 – 3 log 
decreases by 1/3 times of the initial K p 10 2
= log 2 – 3 log 1.03 decreases by 1/9 times of the initial K p 10 3
= log 3 (ii) When temperature is increased from 27ºC to 37ºC the K p value of the reaction – 
+ 
Y (g) 
A (g) + B (g) decreases by 1/1.41 times of the initial K p (iii) K p of the reaction given in passage at 25ºC is – 10 4
Text Solution
Verified by Experts10
(i)
Sol. log 
= log 3 – log 1.03
(ii)
Sol. decreases by 1/1.41 times of the initial K p
(iii)
Sol. 10 2
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