Identify the gas which is readily adsorbed by activated charcoal
Show Hint
A gas which is easy to liquefy is most readily adsorbed.
- $H_2$
- $O_2$
- $N_2$
- $SO_2$
The Correct Option is D
Approach Solution - 1
The correct answer is Option D) \(SO_2\)
A gas which is easy to liquefy is most readily adsorbed. This is because van der Waal's forces are stronger near critical temperatures.
380 ml of sulphur dioxide is readily adsorbed by 1g of activated charcoal. Thus out of the given four choices \(SO_{2}\) will be most readily adsorbed
Therefore, Option D is the correct answer.
Discover More From Chapter: Surface Chemistry
Approach Solution -2
The correct answer is Option D) \(SO_2\)
Real Life Applications
Real-life applications of activated charcoal for gas adsorption are:
- Purifying water as activated charcoal can remove impurities
- It can remove harmful gases and filter the air.
- Gases like hydrogen and methane can be stored by the use of charcoal
- They can be used to adsorb odor in many appliances.
Question can also be asked as
- Name the gas that are adsorbed by activated charcoal.
- How does activated charcoal adsorb gases?
- What are the applications of activated charcoal for gas adsorption?
Approach Solution -3
The correct answer is Option D) \(SO_2\)
Activated charcoal is a highly porous material known for its adsorption capabilities. One of the substances it readily adsorbs is sulphur dioxide (SO2).
Activated Charcoal
- Activated charcoal is a form of carbon that undergoes a special activation process, resulting in a highly porous structure.
- It possesses a large surface area due to its intricate network of pores and can adsorb a wide range of substances.
Sulphur Dioxide (SO2)
- Sulphur dioxide is a toxic gas produced during the combustion of fossil fuels, industrial processes, and volcanic activity.
- It is a major air pollutant and a significant contributor to acid rain formation.
Check Out:
| Related Concepts | ||
|---|---|---|
| Hydrogen Chloride | Interhalogen Compounds | Brown Ring Test |
| Transition Metals | Bonding in Metal Carbonyls | Oxides of Nitrogen |
| Aqua Regia | Coordination Compounds | Manufacturing of Sulphuric Acid |
Adsorption Mechanism
- The adsorption process involves the adherence of molecules or ions to the surface of the adsorbent material.
- Activated charcoal's high surface area and pore structure allow it to attract and capture sulphur dioxide molecules through physical adsorption.
Sulphur dioxide adsorption helps in reducing air pollution by capturing and removing this harmful gas from industrial emissions or indoor environments. Activated charcoal's ability to readily adsorb sulphur dioxide makes it a valuable tool for air purification and gas treatment in various industries.
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Concepts Used:
Surface Chemistry
The study of the chemical phenomena that occur at the interface of two surfaces which can be solid-liquid, solid-gas, solid-vacuum, liquid-gas, etc.
Read Also: Surface Chemistry
Applications of surface chemistry are:
Adsorption:
The process of attraction and aggregation of the molecules of a substance on the surface of a solid is known as adsorption. For Example, N2 adsorbs on the surface of activated charcoal
Two types of adsorption are:-
- Chemisorption: It is also known as Chemical Adsorption.
- Physisorption: It is also known as Physical Adsorption.
Corrosion:
The process through which the refined metals convert themselves into more stable compounds is known as corrosion.
Crystallisation:
The type of technique used in order to purify the substances to separate Solids from liquids is known as crystallisation.
Heterogeneous Catalysis:
The process wherein a catalyst is used in order to increase the rate of a chemical reaction is known as catalysis. The catalyst does not undergo any transformation and can be recovered in a chemically unchanged state.
There are two types of catalysis:-
- When the catalyst involved and the reacting substances are same states of matter or in the same phase, it is known as Homogeneous Catalysis.
- When the catalyst involved and the reacting substances are in different states of matter or different phases, it is known as Heterogeneous Catalysis.