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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. Feeling of weakness and discomfort in breathing at high altitude. - Chemistry

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प्रश्न

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

Feeling of weakness and discomfort in breathing at high altitude.

थोडक्यात उत्तर
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उत्तर

At high altitudes, partial pressure of oxygen is less than that of ground level. This leads to low concentrations of oxygen in blood and tissues of people living at high altitudes or climbers. The low blood oxygen causes climbers to become weak and unable to think clearly known as anoxia.

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पाठ 2: Solutions - Exercises [पृष्ठ २५]

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

संबंधित प्रश्‍न

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


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


Henry’s law constant for CO2 in water is 1.67 × 108 Pa at 298 K. Calculate the quantity of CO2 in 500 mL of soda water when packed under 2.5 atm CO2 pressure at 298 K.


Identify that the following compound is insoluble, partially soluble or highly soluble in water:

pentanol


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.


Which mixture is used for respiration by deep sea divers?

(A) He + O2

(B) Ne + O2

(C) Ar + O2

(D) Kr + O2


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)


Write the name of gas released when Cu is added to the conc. HNO


State Henry’s law.


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?


The value of Henry's constant KH is ______.


Which of the following factor(s) affect the solubility of a gaseous solute in the fixed volume of liquid solvent?

(a) nature of solute

(b) temperature

(c) pressure

(i) (a) and (c) at constant T

(ii) (a) and (b) at constant P

(iii) (b) and (c) only

(iv) (c) only


What is the significance of Henry’s Law constant KH?


Match the items given in Column I with the type of solutions given in Column II.

Column I Column II
(i) Soda water (a) A solution of gas in solid
(ii) Sugar solution (b) A solution of gas in gas
(iii) German silver (c) A solution of solid in liquid
(iv) Air (d) A solution of solid in solid
(v) Hydrogen gas in palladium (e) A solution of gas in liquid
  (f) A solution of liquid in solid

If O2 gas is bubbled through water at 303 K, the number of millimoles of O2 gas that dissolve in 1 litre of water is ______. (Nearest integer)

(Given: Henry's Law constant for O2 at 303 K is 46.82 k bar and partial pressure of O2 = 0.920 bar)

(Assume solubility of O2 in water is too small, nearly negligible)


Solubility of gas in liquid decreases with increase in ______.


Identify that the following compound is insoluble, partially soluble or highly soluble in water:

Formic acid


Identify that the following compound is insoluble, partially soluble or highly soluble in water:

Ethylene glycol


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