Podcast
Questions and Answers
What is the primary characteristic of lyophilic colloids?
What is the primary characteristic of lyophilic colloids?
- They are typically found in gaseous states
- They have a weak interaction between the dispersed phase and dispersion medium
- They have a strong interaction between the dispersed phase and dispersion medium (correct)
- They are composed of macromolecules
Which type of colloid is likely to have a weak interaction between the dispersed phase and dispersion medium?
Which type of colloid is likely to have a weak interaction between the dispersed phase and dispersion medium?
- Lyophilic colloid
- Association colloid
- Lyophobic colloid (correct)
- Solvent sheath
What is the purpose of the dispersion medium in a colloidal system?
What is the purpose of the dispersion medium in a colloidal system?
- To increase the surface area of the dispersed phase
- To act as a barrier between the dispersed phase and the solvent
- To facilitate the interaction between the dispersed phase and the solvent (correct)
- To enhance the stability of the colloidal system
What is the term used to describe the layer of solvent molecules surrounding the colloidal particles?
What is the term used to describe the layer of solvent molecules surrounding the colloidal particles?
Which type of colloid is characterized by the presence of a solvent sheath?
Which type of colloid is characterized by the presence of a solvent sheath?
What type of dispersion is characterized by a dispersed phase with a size range of 1-10 nanometers?
What type of dispersion is characterized by a dispersed phase with a size range of 1-10 nanometers?
Which of the following types of colloids are stabilized by a solvent sheath?
Which of the following types of colloids are stabilized by a solvent sheath?
What type of colloid is formed when a dispersion medium is added to a lyophilic sol?
What type of colloid is formed when a dispersion medium is added to a lyophilic sol?
Which of the following types of colloids are characterized by the presence of a dispersion medium?
Which of the following types of colloids are characterized by the presence of a dispersion medium?
What type of colloid is characterized by the association of molecules to form a micelle?
What type of colloid is characterized by the association of molecules to form a micelle?
What type of colloids do materials form with relative ease due to their affinity for the dispersion medium?
What type of colloids do materials form with relative ease due to their affinity for the dispersion medium?
What is the primary reason for the formation of colloidal dispersions or sols?
What is the primary reason for the formation of colloidal dispersions or sols?
What is the term used to describe the layer of dispersion medium surrounding a colloidal particle?
What is the term used to describe the layer of dispersion medium surrounding a colloidal particle?
Which of the following is NOT a characteristic of Lyophobic Colloids?
Which of the following is NOT a characteristic of Lyophobic Colloids?
What is the term used to describe colloids that are formed by the association of surfactant molecules in a dispersion medium?
What is the term used to describe colloids that are formed by the association of surfactant molecules in a dispersion medium?
Flashcards are hidden until you start studying
Study Notes
Colloidal Systems
- Colloidal materials form colloidal dispersions or sols with relative ease due to their affinity for the dispersion medium.
Types of Colloidal Systems
- Classified according to the interaction between the dispersed phase and dispersion medium.
Lyophilic Colloids
- Contain colloidal particles that interact with the dispersion medium to an appreciable extent.
- Referred to as solvent-loving (lyophilic) colloids.
- Three types of dispersed systems based on the size of the dispersed phase:
- Molecular dispersions
- Colloidal dispersions
- Coarse dispersions
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
