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Standard IX

Chemistry

Effect of Change of Temperature on State Change of Matter

Among the fol...

Question

Among the following gases which gas has the highest Henry's law constant, $K_{H}$ value in water at the same temperature?

O_{2}

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N_{2}

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H_{2}

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H e

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Solution

The correct option is D $H e$
According to Henry's law constant,' for a given external pressure of a gas, its solubility is inversely proportional to Henry's law constant,i.e, higher the value of $K_{H}$ , lower the solubility.
$S \propto \frac{1}{K_{H}}$
Henry law constant for helium is highest and lowest for oxygen. The order is :
$H e > N_{2} > H_{2} > O_{2}$
Hence, option D is correct.

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Similar questions

Henrys law constant $[K_{H}]$ for four gases at 293 K are,

$H e [144.97 K b a r], H_{2} [69.16 K b a r], N_{2} [76.48 K b a r], O_{2} [34.86 K b a r]$ .

Which gas is more soluble in water at a given pressure.

Q. The value of Henry's law constant for some gases at

293 K

is given below. Arrange the gases in the increasing order of their solubility.

H e = 144.97 k b a r

;

H_{2} = 69.16 k b a r

N_{2} = 76.48 k b a r

;

O_{2} = 34.86 k b a r

Q. At a particular temperature, for the same partial pressures, the value of

K_{H}

(Henry’s constant) in water for

O_{2}

is smaller than that of

N_{2}

. Which of the following is correct?

Q. (i) Gas (A) is more soluble in water than gas (B) at the same temperature. Which one of the two gases will have the higher value of

K_{H}

(Henry's constant) and why?

(ii) In non-ideal solution, what type of deviation shows the formation of maximum boiling azeotropes?

Gases posses charcteristic critical temperature which depends upo the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.

$\begin{matrix} G a s e s & H_{2} & H e & O_{2} & N_{2} C r i t i c a l t e m p e r a t u r e i n K e l v i n & 33.2 & 5.3 & 154.3 & 126 \end{matrix}$

From the above data what would be the order of liquefaction of these gases? Start writing the order from the gas liquefying first

(a) $H_{2}, H e, O_{2}, N_{2}$ (b) $H e, O_{2}, H_{2}, N_{2}$

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Among the following gases which gas has the highest Henry's law constant, KH value in water at the same temperature?

Among the following gases which gas has the highest Henry's law constant, $K_{H}$ value in water at the same temperature?