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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ९

Diffentiate between absorption and adsorption.

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प्रश्न

Diffentiate between absorption and adsorption.

अंतर स्पष्ट करें
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उत्तर

Sr. No. Absorption Adsorption
1. Definition It is a process in which any substance (atoms, ions, or molecules) is taken by or absorbed by another substance, especially in the solid or liquid material. The substances like gas, liquids or dissolved solids loosely adhere or stick to the surface of another substance which can be solid or liquid.
2. Type of phenomenon It is a bulk phenomenon. It is a surface phenomenon.
3. Type of process Endothermic process. Exothermic process.
4. Rate of reaction Uniform rate. The reaction rate increases slowly and attains equilibrium.
5. Concentration Do not change its constant throughout the medium. The concentration varies from bulk to the bottom of the absorbent.

6. Temperature effect

No effect of temperature. Works at the lower temperature.
7. Application Cold storage, ice production, turbine inlet cooling, refrigerants, etc. Air conditioning, water purification, synthetic resin, chillers, etc.
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अध्याय 10: Matter Around Us - Exercise [पृष्ठ १२३]

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सामाचीर कलवी Science [English] Class 9 TN Board
अध्याय 10 Matter Around Us
Exercise | Q V. 1. | पृष्ठ १२३

संबंधित प्रश्न

What are the two conditions for the interconversion of states of matter ?


Define the following term  of Matter .


What is the scientific name of particles which make up mater?


There are three substances X, Y and Z. The substance X does not have a fixed melting point or boiling point and it still shows the individual properties of its constituents. The substance Y is a pure substance which occurs in nature as such. The substance Y has a fixed melting point and boiling point but it cannot be broken down into simpler substances by any chemical means. The substance Z is also a pure substance whose properties are entirely different from those of its constituents. The substance Z can, however, be divided by electrolysis into two substances which belong to the same class of substances as Y.

  1. What type of substance could X be ? Name one substance like X.
  2. What type of substance could Y be ? Name one substance like Y.
  3. What type of substance could Z be ? Name one substance like Z.
  4. Which process involves absorption or release of an appreciable amount of energy : formation of substance X or formation of substance Z ?
  5. Name the three groups into which all the substances like Y are divided on the basis of their properties.

Name the process which can be used to purify an impure sample of copper sulphate.


Describe a method to separate a mixture of common salt and sand.


Write a method to separate a mixture of sand and potash alum.


Pure copper sulphate can be obtained from an impure sample by the process of :


Which of the following cannot be separated from air by the process of fractional distillation ?


Define the term matter.


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