If you were to graph particle size and porosity, it would be a constant slope (horizontal line).
Porosity is not affected by particle size.A value for porosity can alternatively be calculated from the bulk density ρbulk and particle density ρparticle: Normal particle density is assumed to be approximately 2.65 g/cm3, although a better estimation can be obtained by examining the lithology of the particles.
Particle density generally decreases as particle size increases. This is because larger particles have more void spaces in between them, resulting in lower mass per unit volume. Smaller particles have a higher packing efficiency and thus higher particle density.
Particle density refers to the number of particles present in a given volume of space. It is a measure of how closely packed particles are within a material or substance. Particle density is usually expressed in terms of particles per unit volume.
mass / volume is density.
a troubled one.......
A value for porosity can alternatively be calculated from the bulk density ρbulk and particle density ρparticle: Normal particle density is assumed to be approximately 2.65 g/cm3, although a better estimation can be obtained by examining the lithology of the particles.
The relationship between density and porosity is an indirect proportionality.That is, the higher the density of a rock, the lower will be the porosity of that rock.In a more explicit way, the weight of over-lying rocks increase the density of the rock beneath, which in turn decreases the amount of pore spaces (porosity) of the rock through processes such as compaction, cementation, etc. Posted by Nwigwudu Ikechukwu.
Bulk density is the dry mass of the solids (M sub t) / total volume (V sub t) Particle density is bulk density (P sub b) / 1 minus total porosity (1-theta).
The larger the particle size, the higher the porosity. Also keep in mind that angular particles have a higher porosity than round particles. *Good way to remember porosity is that the spaces between particles are "pore-like."
Concerning the second Question: "Can you find bulk density with just this info?"Purely on mathematical insight and analysis:Yes, you should be able to find the bulk density of dry soil, given the 'dry overall' and the 'particle' densities.When wet, there is not enough 'given'Also some should be known about the (or your) definition of porosity
Increasing density decreases porosity, as the material becomes more compact and there is less space between particles for fluids to flow through. Conversely, decreasing density increases porosity, allowing for more pore space within the material.
Particle density generally decreases as particle size increases. This is because larger particles have more void spaces in between them, resulting in lower mass per unit volume. Smaller particles have a higher packing efficiency and thus higher particle density.
The relationship between density and temperature is linear. In a thermal expansion, density will decrease and temperature increases and vice versa.
In quantum mechanics, the probability density function describes the likelihood of finding a particle in a particular state. It is a key concept in understanding the behavior of particles at the quantum level.
Soil particle density refers to the mass of soil particles per unit volume of soil. It is a measure of how tightly packed the soil particles are within a given volume of soil. Particle density is typically a function of the composition of the soil and can influence various soil properties such as porosity and water holding capacity.
density
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