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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Explain the following phenomena with the help of Henry’s law. Painful condition known as bends.

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प्रश्न

Explain the following phenomena with the help of Henry’s law.

Painful condition known as bends.

टीपा लिहा
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उत्तर

To Henry's law pressure of a gas is directly proportional to solubility. Scuba divers when coming towards surface the air pressure gradually decreases. This reduced pressure releases the dissolved gases present in blood and leads to the formation of bubbles of nitrogen in the blood. These blocks capillaries and creates a medical condition known as bends, which is painful and dangerous to live.

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पाठ 2: Solutions - Exercises [पृष्ठ २५]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 2 Solutions
Exercises | Q III. 42. (a) (i) | पृष्ठ २५

संबंधित प्रश्‍न

What is the effect of temperature on solubility of a gas in a liquid?


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 KH (Henry’s constant) and why


Why do gases always tend to be less soluble in liquids as the temperature is raised?


The partial pressure of ethane over a solution containing 6.56 × 10−3 g of ethane is 1 bar. If the solution contains 5.00 × 10−2 g of ethane, then what shall be the partial pressure of the gas?


Henry’s law constant for the molality of methane in benzene at 298 K is 4.27 × 105 mm Hg. Calculate the solubility of methane in benzene at 298 K under 760 mm Hg.


The air is a mixture of a number of gases. The major components are oxygen and nitrogen with approximate proportion of 20% is to 79% by volume at 298 K. The water is in equilibrium with air at a pressure of 10 atm. At 298 K if the Henry’s law constants for oxygen and nitrogen are 3.30 × 107 mm and 6.51 × 107 mm respectively, calculate the composition of these gases in water.


The solubility product of PbCl2 at 298K is 1.7 × 10-5. Calculate the solubility of PbCl2 in g/lit. at 298K. 
Atomic Weights: [Pb = 207 and Cl = 35.5]


A solution is prepared by dissolving 9.25 g of non-volatile solute in 450 mL of water. It has an osmotic pressure of 350 mm of Hg at 27°C. Assuming the solute is non-electrolyte, determine its molecular mass. (R = 0.0821 Lit-atm K1 mol−1)


State Henry’s law.


Which law shows relation between pressure and solubility of a gas in solvent?


According to Henry’s law, the amount of gas that will dissolve in blood plasma or any other liquid is determined by which of these factors?


Henry’s law constant of oxygen is 1.4 × 10–3 mol lit–1 atm–1 at 298 K. How much of oxygen is dissolved in 100 ml at 298 K when the partial pressure of oxygen is 0.5 atm?


Low concentration of oxygen in the blood and tissues of people living at high altitude is due to ______.


Explain the solubility rule “like dissolves like” in terms of intermolecular forces that exist in solutions.


The solubility of a gas in water depends on ______


Explain the following phenomena with the help of Henry’s law.

Feeling of weakness and discomfort in breathing at high altitude.


Assume that argon exerts a partial pressure of 6 bar. Calculate the solubility of argon gas in water. (Given Henry’s law constant for argon dissolved in water, KH = 40 k bar)


Write the two applications of Henry’s law.


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