0
How do you calculate particle size from surface area and density?
Wiki User
∙ 14y ago
Without going into a long derivation, the diameter (D) of a particle (in microns) can be estimated from a material with a known surface area (SA, in m2/gram) and density (p, in gram/cm3) using the equation D = 6 / (SA * p). As an example, an aluminum powder with a surace area equal to 0.5 m2/gram and a density of 2.7 gram/cm3 would be 4.44 microns (D = 6/(0.5*2.7) = 6/1.35 = 4.44) Assumptions: You are assuming that you have equi-sized, spherical particles (which is never the case, but allows for a good approximation).
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How do you calculate surface density?
Surface density is calculated by dividing the mass of an object or substance by its surface area. The formula is surface density (σ) = mass (m) / surface area (A). The standard unit for surface density is kilograms per square meter (kg/m^2).
How do you calculate the volume of a triangle if you only have the height and density?
A triangle is a flat area, therefore it has a surface area, not a volume. Density is unrelated to the problem; you would need some additional information to calculate the surface area.
How do you Calculate mass with surface AREA?
You cannot These are different concepts. you need a volume and density to calculate mass, surface area provides neither (a cube and a sphere with the same surface area have different volumes and, had they been made of the same material, would have different masses).
How do you calculate density from surface area per m2 and number of species ie density of epiphytes per m2 of trunk from having the surface area of the trunk and number of epiphytes on it?
To calculate the density of epiphytes per m2 of trunk, you would divide the number of epiphytes by the surface area of the trunk in square meters. This would give you the number of epiphytes per square meter of trunk. Density = Number of epiphytes / Surface area of trunk.
What happens to the amount of surface area of a particle compared to its mass as its size gets smaller?
As a particle's size gets smaller, its surface area-to-mass ratio increases. This is because as the particle shrinks, its volume (and therefore mass) decreases faster than its surface area. This increased surface area-to-mass ratio can influence the particle's reactivity, solubility, and other properties.
What is the difference between surface and density?
Surface refers to the outermost part of an object or material, the area that is exposed. Density, on the other hand, is a measure of how much mass is contained in a given volume of a substance. Essentially, surface is related to the external appearance or boundary of an object, while density describes how closely packed the particles are within that object.
How do you compare the surface are to volume ratio of cells of different size?
You need to:* Calculate the surface area * Calculate the volume * Divide the surface area by the volume
What To calculate the pressure exerted on a surface what quantity is divided by the surface area?
To calculate the pressure exerted on a surface, the force acting on the surface is divided by the surface area. Mathematically, pressure = force / area.
How do you calculate surface area to volume?
surface area divided by volume
To calculate the pressure exerted on a surface what quantity is divided by the surface area?
To calculate the pressure exerted on a surface, the force normal to the surface is divided by the surface area. The formula for pressure is pressure = force / area.
How could you calculate the surface area of a shape?
To calculate the surface area of a shape find the area of each side, and then, add all of the areas together. The sum of the areas is the surface area.
What reactions are affected by particle size?
Particle size can affect various reactions such as dissolution rate, surface area available for reaction, and diffusion rates. Smaller particle sizes increase the surface area, leading to faster reactions, while larger particle sizes can reduce the reaction rate due to lower surface area available for reaction.
