1
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
For the reaction SO2 (g) + $${1 \over 2} O_2(g) \leftrightharpoons$$ SO3(g).
if KP = KC(RT)x where the symbols have usual meaning then the value of x is: (assuming ideality)
A
-1
B
-1/2
C
1/2
D
1
2
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
The equilibrium constant (KC) for the reaction N2(g) + O2(g) $$\to$$ 2NO(g) at temperature T is 4 $$\times$$ 10–4. The value of KC for the reaction, NO(g) $$\to$$ 1/2N2(g) + 1/2O2(g) at the same temperature is :
A
0.02
B
2.5 $$\times$$ 102
C
4 $$\times$$ 10-4
D
50.0
3
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
A vessel at 1000 K contains CO2 with a pressure of 0.5 atm. Some of the CO2 is converted into CO on the addition of graphite. If the total pressure at equilibrium is 0.8 atm, the value of K is :
A
3 atm
B
0.3 atm
C
0.18 atm
D
1.8 atm
4
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
In aqueous solution the ionization constants for carbonic acid are
K1 = 4.2 x 10–7 and K2 = 4.8 x 10–11
Select the correct statement for a saturated 0.034 M solution of the carbonic acid.
A
The concentration of $$CO_3^{2−}$$ is 0.034 M.
B
The concentration of $$CO_3^{2−}$$ is greater than that of $$HCO_3^{−}$$
C
The concentration of H+ and $$HCO_3^−$$ are approximately equal.
D
The concentration of H+ is double that of $$CO_3^−$$.
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