JEE Main 2014 (Offline) | Chemical Equilibrium Question 80 | Chemistry

For the reaction SO₂ (g) + $${1 \over 2} O_2(g) \leftrightharpoons$$ SO₃(g).
if K_P = K_C(RT)^x where the symbols have usual meaning then the value of x is: (assuming ideality)

-1

-1/2

1/2

AIEEE 2012

MCQ (Single Correct Answer)

-1

The equilibrium constant (K_C) for the reaction N₂(g) + O₂(g) $$\to$$ 2NO(g) at temperature T is 4 $$\times$$ 10^–4. The value of K_C for the reaction, NO(g) $$\to$$ 1/2N₂(g) + 1/2O₂(g) at the same temperature is :

0.02

2.5 $$\times$$ 10²

4 $$\times$$ 10^-4

50.0

AIEEE 2011

MCQ (Single Correct Answer)

-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 :

3 atm

0.3 atm

0.18 atm

1.8 atm

AIEEE 2010

MCQ (Single Correct Answer)

-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.

The concentration of $$CO_3^{2−}$$ is 0.034 M.

The concentration of $$CO_3^{2−}$$ is greater than that of $$HCO_3^{−}$$

The concentration of H⁺ and $$HCO_3^−$$ are approximately equal.

The concentration of H⁺ is double that of $$CO_3^−$$.

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