How do you determine the rate of diffusion?
Key Equations
- rate of diffusion=amount of gas passing through an areaunit of time.
- rate of effusion of gas Arate of effusion of gas B=√mB√mA=√MB√MA.
What was the dependent variable in the diffusion lab?
In this experiment, diffusion rates are determined by measuring the increase in salt concentrations in the cell chamber over a fixed time period. If the salt concentrations (dependent variable) are plotted against the time they were measured (independent variable), the slope of the resulting line is the diffusion rate.
How does temperature affect the rate of diffusion experiment?
The increased motion of the particles causes them to diffuse faster. Therefore, at higher temperatures, the rate at which fluid particles will diffuse is faster than at lower temperatures. In the experiment, the food coloring will diffuse faster in the hot water than in the cold water.
How do you calculate the rate?
If you have a rate, such as price per some number of items, and the quantity in the denominator is not 1, you can calculate unit rate or price per unit by completing the division operation: numerator divided by denominator.
At which temperature will diffusion occur at the fastest rate?
Diffusion occurs faster in higher temperatures because the speed of the particles rises, as does the temperature.
What diffuses faster high molecular weight or low?
Mass of the molecules diffusing: Heavier molecules move more slowly; therefore, they diffuse more slowly. The reverse is true for lighter molecules. Temperature: Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion.
What is the rate of diffusion?
The rate of diffusion, dn/dt, is the change in the number of diffusing molecules inside the cell over time. Since the net movement of diffusing molecules depends on the concentration gradient, the rate of diffusion is directly proportional to the concentration gradient (dC/dx) across the membrane.
How does diffusion gradient affect the rate of diffusion?
Extent of the concentration gradient: The greater the difference in concentration, the more rapid the diffusion. The closer the distribution of the material gets to equilibrium, the slower the rate of diffusion becomes.
How do you find the rate of glaciation?
The glacier equivalent is E = KV2 where E is the erosion rate of the glacier, K is the erodibility or strength of the underlying rock, and V is the speed of the glacier, or part of the glacier, in meters per day.