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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."
What else can I help you with?
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.
What is the change in velocity over time?
The change in velocity over time is known as acceleration. It measures how quickly an object's velocity is changing, either speeding up, slowing down, or changing direction. Acceleration is calculated by dividing the change in velocity by the time taken for that change to occur.
How do you calculate the rate of water uptake by a plant?
The rate of water uptake by a plant can be calculated by measuring the change in weight of the plant over time as it takes up water. By recording the initial weight of the plant and then weighing it at specific time intervals, you can determine the amount of water absorbed by the plant over a given period. Divide the change in weight by the time taken to get the rate of water uptake.
Can your Rh factor change over time?
No, your Rh factor does not change over time.
What is the mean speed of diffusion of the purple coloration through the water?
The mean speed of diffusion can be calculated by measuring the distance the purple coloration travels over a specific time period and dividing it by the time taken. The rate of diffusion can be influenced by factors such as temperature, concentration gradient, and molecular size, which can impact the speed at which the coloration spreads through the water.
When does non-steady state diffusion occur?
Non-steady state diffusion occurs when there is a change in concentration over time in a system.
What is the formula for calculating the rate of change of temperature over time, given a constant rate of change of 3/2kt?
The formula for calculating the rate of change of temperature over time, given a constant rate of change of 3/2kt, is dT/dt 3/2k.
Why are coloured liquids good for diffusion experiments?
Colored liquids are good for diffusion experiments because they allow you to visualize and track the movement of particles as they spread out. The color helps to easily see the change in concentration over time, making it easier to measure and analyze the rate of diffusion.
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 the rate at which speed and direction change?
The rate at which speed changes is acceleration, which is the change in velocity over time. The rate at which direction changes is angular acceleration, which is the change in angular velocity over time.
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 the rate of Chang of velocity?
The rate of change of velocity is known as acceleration. It measures how much an object's velocity changes over a specific period of time. It can be calculated by dividing the change in velocity by the time interval over which the change occurs.
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.
Amount of change of one measurment in a given amount of time?
The rate of change is a measure of how one quantity changes over time. It is calculated by finding the difference in the quantity values divided by the difference in time. If the quantity is increasing, the rate of change is positive, while if it is decreasing, the rate of change is negative.
