Advertisements
Advertisements
प्रश्न
Why do gases always tend to be less soluble in liquids as the temperature is raised?
Advertisements
उत्तर
The solubility of a gas in a liquid at a particular temperature is directly proportional to the pressure of the gas in equilibrium with the liquid at that temperature. The dissolution of a gas in a liquid is an exothermic process, that is, it is accompanied by the evolution of heat. Thus,
\[\ce{Gas + Solvent <=> Solution + Heat}\]
Applying Le Chatelier’s principle, the increase of temperature would shift the equilibrium in the backward direction; that is, solubility would decrease. Therefore, gases always tend to be less soluble in liquids as the temperature is raised.
संबंधित प्रश्न
Explain, why do aquatic animals prefer to stay at lower level of water during summer?
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
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
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.
How does solubility of a gas in water varies with the temperature?
The solubility product (Ksp) of BaSO4 is 1.5 X 10-9.Calculate the solubility of barium sulphate in pure water and in 0.1 M BaCl2.
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
The value of Henry's constant KH is ______.
Explain the following phenomena with the help of Henry’s law.
Feeling of weakness and discomfort in breathing at high altitude.
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 ______.
In which of the following solvents, the \[\ce{C4H8NH3+X–}\] is soluble?
Amongst the following compounds, identify which are insoluble, partially soluble and highly soluble in water?
- phenol
- toluene
- formic acid
- ethylene glycol
- chloroform
- pentanol
Assertion (A): Helium is used to dilute oxygen in diving apparatus.
Reason (R): Helium has high solubility in O.
In the light of the above statements, choose the correct answer from the options given below:
