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"...gases of different nature, when brought into contact, do not arrange themselves according to their density, the heaviest undermost, and the lighter uppermost, but they spontaneously diffuse, mutually and equally, through each other, and so remain in the intimate state of mixture for any length of time."
Wiki User
∙ 6y ago
Wiki User
∙ 9y agoYes the rate of diffusion does change over time. As the solution reaches equilibrium the rate of diffusion began to decrease.
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What is osmotic rate?
the change of osmotic pressure over time
What is the change in velocity over time?
acceleration a----->velocity=acceleration x time: v=a x t
How does viscosity affect the rate of diffusion?
The higher the viscosity, the slower the rate of diffusion. Think of a liquid trying to diffuse through a plate of water (low viscosity) versus a liquid trying to diffuse through a plate of agar (high viscosity)
What is the definetion of evolution?
Evolution is the change in allele frequency over time in a population of organisms. Change over time.
How can you use weights of the filled cell models to determine the rate and direction of diffusion?
If the cell model weighs more after the elapsed time (30 min in this case), it can be determined that water has diffused INTO the cell model. However if the cell model weighs less after the elapsed time (30 min in this case), it can be determined that water has diffused out of the cell model. The rate of diffusion compared to other cell models being investigated in the experiment can be determined by comparing the change in mass to other cell models. For example, if a cell model containing glucose changed + 15.7 % in mass over 30 minutes and a cell model containing sucrose changed + 27.3 % in mass over 30 minutes, it can be assumed that the diffusion rate in the sucrose model is faster than in the glucose model. You would have to have a way to measure solute concentrations and such in order to determine water potentials and what not. Hope this helps, just my insight from completing AP Biology Investigation 4. Current AP Biology student.
Does the earth's rate of speed change over time?
You don't say which speed, but all change over time.
What is it called when the rate at which velocity changes over time?
The rate of change of velocity over time is called acceleration. It can be as a result of increase or decreased speed, or change of vector.
What acceleration is the rate at which what changes over time?
Acceleration is the rate of change of velocity - in symbols, a = dv/dt. Or for average acceleration over a finite time: a(average) = delta v / delta twhere delta v is the change in velocity, and delta t is the time interval.
What is an example of a Rate of Change related to zoology?
The population of a species over a period of time will change according to some rate of change.
What is osmotic rate?
the change of osmotic pressure over time
A change in elevation over time is called?
rate Evolution
The rate of change of position over a period of time?
speed.
Does the rate of change have to be negative?
no... the sign indicates whether the rate of change is increasing or decreasing. It is only negative if the rate is decreasing over time.
What is over time?
Changes in position over time is motion, and the rate of change may be velocity or speed.
What would heating do to the rate of diffusion of a salt crystal?
the rate of diffusion increases. the increase in the temperature makes the molucules move faster giving space for diffusion to occur and the amount and the time increases.
Acceleration is the rate at which happens?
acceleration is the rate of change of velocity with respect to time.
What is position over time?
Changes in position over time is motion, and the rate of change may be velocity or speed.
