English

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

Advertisements
Advertisements

Question

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

Explain
Advertisements

Solution

Solubility of gases decreases with increasing temperature. During the summer, the concentration of dissolved oxygen is low at the upper level of water; therefore, aquatic animals prefer to stay at the lower level of water during summer.

shaalaa.com
  Is there an error in this question or solution?
2013-2014 (March)

APPEARS IN

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

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?


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


Which mixture is used for respiration by deep sea divers?

(A) He + O2

(B) Ne + O2

(C) Ar + O2

(D) Kr + O2


How does solubility of a gas in water varies with the temperature?


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 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?


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?


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


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

Painful condition known as bends.


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

The solubility of a gas in water depends on ______


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)


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)


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 ______.


In which of the following solvents, the \[\ce{C4H8NH3+X–}\] is soluble?


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:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×