Advertisements
Advertisements
प्रश्न
Which mixture is used for respiration by deep sea divers?
(A) He + O2
(B) Ne + O2
(C) Ar + O2
(D) Kr + O2
Advertisements
उत्तर
He + O2
APPEARS IN
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?
H2S, a toxic gas with rotten egg like smell, is used for the qualitative analysis. If the solubility of H2S in water at STP is 0.195 m, calculate Henry’s law constant.
Based on solute-solvent interactions, arrange the following in order of increasing solubility in n-octane and explain.
Cyclohexane, KCl, CH3OH, CH3CN
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.
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]
Write the name of gas released when Cu is added to dilute HNO3
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?
Low concentration of oxygen in the blood and tissues of people living at high altitude is due to ______.
Value of Henry’s constant KH ______.
KH value for \[\ce{Ar(g)}\], \[\ce{CO2(g)}\], \[\ce{HCHO (g)}\] and \[\ce{CH4(g)}\] are 40.39, 1.67, 1.83 × 10–5 and 0.413 respectively. Arrange these gases in the order of their increasing solubility.
State Henry’s law and explain why are the tanks used by scuba divers filled with air diluted with helium (11.7% helium, 56.2% nitrogen and 32.1% oxygen)?
Henry's constant (in k bar) for four gases α, β, γ and δ in water at 298 K is given below:
| α | β | γ | δ | |
| KH | 50 | 2 | 2 × 10-5 | 0.5 |
(density of water = 103 kg m-3 at 298 K)
This table implies that:
Write the two applications of Henry’s law.
Identify that the following compound is insoluble, partially soluble and highly soluble in water.
Toluene
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
Identify that the following compound is insoluble, partially soluble or highly soluble in water:
Chloroform
