Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 34

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The equilibrium constant $(K_{c})$ for the reaction, $N_{2} (g) + O_{2} (g) \to 2 NO (g)$ , at temperature, $T$ , is $4 \times 10^{- 4}$ . The value of $K_{c}$ for the reaction $NO (g) \to \frac{1}{2} N_{2} (g) + \frac{1}{2} O_{2} (g)$ at the same temperature is:

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Important Questions on Equilibrium

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Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 35

If the amount of dissociation is

\sqrt{0.5}

, the value of

K_{p}

for the reaction

N_{2} O_{3} ⇌ NO + {NO}_{2}

will be

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Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 36

How many moles per litre of

{PCl}_{5}

has to be taken to obtain

0.1

mol

of

{Cl}_{2}

, if the value of the equilibrium constant

K_{c}

for dissociation of

{PCl}_{5}

is

0.04 ?

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Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 37

For the reaction,

N_{2} O_{3} ⇌ NO + {NO}_{2},

the value of equilibrium constant

K_{p}

at fixed temperature is

4 .

What will be the amount of dissociation at same temperature and

5

atmospheric pressure ?

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Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 38

One mole of

{PCl}_{5}

is heated in a closed container of one litre capacity. At equilibrium,

20 % {PCl}_{5}

is not dissociated. What should be the value of

K

?

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Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 44

The concentration of

[H^{+}]

and concentration of

[O H^{-}]

of a 0.1 aqueous solution of 2% ionised weak acid is [Ionic product of water

= 1 \times 1 0^{- 14}

]

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Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 45

The solubility of

B a S O_{4}

in water is

2.33 \times 1 0^{- 3} g / l i t r e .

Its solubility product will be (molecular weight of

B a S O_{4} = 233

)

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Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 47

When

10 ml

of

0.1 M

acetic acid

({pK}_{a} = 5.0)

is titrated against

10 ml

of

0.1 M

ammonia solution

({pK}_{b} =

5.0)

, the equivalence point occurs at

pH

.

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Beta Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>EXERCISE-III (Analytical Questions)>Q 48

At

25 ° C

, the dissociation constant of a base

BOH

is

1.0 \times 10^{- 12}

. The concentration of hydroxyl ions in

0.01 M

aqueous solution of the base would be