English

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

Advertisements
Advertisements

Question

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

Short Answer
Advertisements

Solution

According to Charles’ law, volume of a given mass of a gas increases with increase in temperature.

Therefore, the volume of a given mass of dissolved gas increases with temperature, making it impossible for the solvent to accommodate the gaseous solute, which then forms gas bubbles.

Hence, the solubility of a gas in a liquid decreases with increasing temperature.

shaalaa.com
  Is there an error in this question or solution?
2014-2015 (October)

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Explain, why do aquatic animals prefer to stay at lower level of water during summer?


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.


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.


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?


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.


Which mixture is used for respiration by deep sea divers?

(A) He + O2

(B) Ne + O2

(C) Ar + O2

(D) Kr + O2


State Henry's Law. What is the effect of temperature on the solubility of a gas in a liquid?


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)


Write the name of gas released when Cu is added to dilute HNO3


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


State Henry’s law.


The statement “If 0.003 moles of a gas are dissolved in 900 g of water under a pressure of 1 atmosphere, 0.006 moles will be dissolved under a pressure of 2 atmospheres”, illustrates.


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?


Value of Henry's constant KH ______.


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


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

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)?


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)


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:


Solubility of gas in liquid decreases with increase in ______.


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:

Chloroform


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×