23 Questions
What is the effect of a smaller particle size on the rate of diffusion?
It moves faster than a larger particle
What is the effect of increasing the temperature on the rate of diffusion?
It increases the rate of diffusion
What is the driving force behind Fick's Law?
Concentration gradient
How does an increase in surface area affect the rate of diffusion?
It increases the rate of diffusion
What is the effect of a longer diffusion distance on the rate of diffusion?
It decreases the rate of diffusion
What is the effect of a steeper concentration gradient on the rate of diffusion?
It increases the rate of diffusion
How does an increase in the diffusion coefficient (D) affect the rate of diffusion?
It increases the rate of diffusion
What is the effect of a thinner barrier on the rate of diffusion?
It increases the rate of diffusion
What is the direction of solute molecules diffusion through the semi-permeable membrane?
From high concentration to low concentration
What is the meaning of the lag time in the context of diffusion?
The time required for a solute to establish a uniform concentration gradient within the membrane
What is the relation between the concentration gradient and the flux of the solute?
The concentration gradient is directly proportional to the flux of the solute
How does the surface area of the membrane affect the diffusion of the solute?
It increases the diffusion of the solute
What is the effect of increasing the diffusion distance on the diffusion of the solute?
It decreases the diffusion of the solute
What is the unit of the flux of the solute?
M/L/t
What is the role of the diffusion coefficient in Fick's first law of diffusion?
It is a measure of the ease of diffusion of the solute
Which factor increases the rate of particle diffusion?
Higher surface area
What occurs when the concentration difference (C1 - C2) is larger?
The rate of diffusion increases
How does temperature affect the rate of diffusion?
Higher temperature increases the rate of diffusion
What is the impact of diffusion distance (h) on the diffusion rate?
It decreases the diffusion rate
Which process involves the solvent passing through a semipermeable membrane?
Osmosis
What will happen if a drug container does not prevent the absorption of water vapor?
The shelf life will significantly reduce
What is one of the first steps in drug release?
Diffusion of solvent
Which phenomenon is crucial for the dissolution and release of drugs from dosage forms?
Diffusion
Quiz on Fick's Law and diffusion, covering concepts like Fick's equation, driving forces, and factors affecting diffusion.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
