Podcast
Questions and Answers
What property of disinfectant solutions allows them to spread out on the cell wall of bacteria?
What property of disinfectant solutions allows them to spread out on the cell wall of bacteria?
- Low surface tension (correct)
- High viscosity
- Low viscosity
- High surface tension
In the clinical test for jaundice, what is the surface tension of urine with bile present?
In the clinical test for jaundice, what is the surface tension of urine with bile present?
- 70 dynes/cm
- 60 dynes/cm
- 66 dynes/cm
- 55 dynes/cm (correct)
What is responsible for lowering the surface tension in washing detergent?
What is responsible for lowering the surface tension in washing detergent?
- Reduced viscosity
- Increased viscosity
- Hydrogen bonding
- Intermolecular cohesive forces (correct)
What type of motion do molecules exhibit in gases?
What type of motion do molecules exhibit in gases?
What shape does a free droplet of liquid naturally assume?
What shape does a free droplet of liquid naturally assume?
What do molecules on the surface of a liquid have on one side that molecules inside the liquid do not?
What do molecules on the surface of a liquid have on one side that molecules inside the liquid do not?
What is the relationship between force and the length of the movable side?
What is the relationship between force and the length of the movable side?
What does the surface tension of a liquid represent?
What does the surface tension of a liquid represent?
What are surfactant molecules capable of doing when dissolved in a liquid?
What are surfactant molecules capable of doing when dissolved in a liquid?
How does the solubility of a solute in a liquid affect the surface tension of the liquid?
How does the solubility of a solute in a liquid affect the surface tension of the liquid?
What is the term used for materials possessing chemical groups leading to surface activity when dissolved in a liquid?
What is the term used for materials possessing chemical groups leading to surface activity when dissolved in a liquid?
What is the relationship between force and the length when considering surface tension?
What is the relationship between force and the length when considering surface tension?
What defines surfactant molecules?
What defines surfactant molecules?
What is the dimension of surface tension?
What is the dimension of surface tension?
What happens to the surface tension of a liquid if a solute is less soluble in it?
What happens to the surface tension of a liquid if a solute is less soluble in it?
What is the term used for molecules having both lyophobic and lyophilic regions?
What is the term used for molecules having both lyophobic and lyophilic regions?
Flashcards are hidden until you start studying
