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Someone wrote "water". Styrofoam is much lower. If you have a foam cup of hot water and stick your finger in the water, you feel lots of heat. If you hold the cup, you feel far less heat. One of the keys to the low thermal conductivity of foam is that it's mostly just some gas, maybe air or nitrogen, with a support structure of polystyrene or some other plastic type material. Gases are not good conductors of heat.
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What is the difference between porosity and permeability?
Porosity refers to the amount of pore space in a material, while permeability is a measure of how easily fluids can flow through a material. High porosity indicates more space for fluids to be stored, while high permeability indicates easy flow of fluids through the material.
Describe the difference between porosity and permeability?
Porosity refers to the empty spaces or voids in a material, while permeability is the ability of a material to allow fluids to flow through it. Higher porosity means more empty spaces, but that doesn't always translate to good permeability; permeability also depends on the connectivity of these pores.
Difference between porosity and permeability?
Porosity is the amount of void space in a rock or other earth material (like a sand deposit) - in other words, it´s how much water a material can hold. Permeability refers to how well water flows through a material - that´s controlled by how large the pores are, and how well connected they are.
What is the permeability coefficient unit used to measure in the context of fluid dynamics?
The permeability coefficient unit is used to measure the ability of a material to allow fluids to pass through it in the context of fluid dynamics.
What is permeability value for H2S?
The permeability value for hydrogen sulfide (H2S) can vary depending on the material it is passing through. Generally, H2S has low permeability in most materials due to its small molecular size and polar nature. Polymer materials with high permeability to gases like silicone rubber are more likely to allow the passage of H2S.
What is the ability of a cell membrane to allow material to pass through it called?
permeability
If a material has a high conductivity does it have a high permeability and if so what would be an approximate permeability for the high conductive material?
ni ata answer
What parameter is the permeability of a material directly related to?
The permeability of a material is directly related to its ability to allow substances to pass through it.
The permeability of a material is 0.998is?
it is diamagnetic
What are facts about permeability?
Permeability refers to the ability of a material to allow fluids or gases to pass through it. It is influenced by factors such as the size of the pores in the material, the composition of the material, and the pressure applied. Permeability is an important property in various fields such as geology, engineering, and biology.
What material has a relative permeability of one?
vacuum
What is the numerical value of the actual mks permeability of the core material?
Permeability is typically measured in Henrys per meter (H/m) or Teslas per ampere (T/A). The numerical value of permeability varies depending on the specific material of the core being used in the magnetic circuit.
What is permeability?
Characteristic of a material that is full of tiny connected airspace that water can seep through.
What is the difference between porosity and permeability?
Porosity refers to the amount of pore space in a material, while permeability is a measure of how easily fluids can flow through a material. High porosity indicates more space for fluids to be stored, while high permeability indicates easy flow of fluids through the material.
Describe the difference between porosity and permeability?
Porosity refers to the empty spaces or voids in a material, while permeability is the ability of a material to allow fluids to flow through it. Higher porosity means more empty spaces, but that doesn't always translate to good permeability; permeability also depends on the connectivity of these pores.
How does the relative permeability of a ferromagnetic material vary with magnetomotive force?
The relative permeability of a ferromagnetic material is non-linear and will increase significantly with the applied magnetomotive force. At low magnetomotive force levels, the permeability will be lower but as the magnetomotive force increases, the material will gradually transition into a more magnetic state with higher permeability.
What is the relationship between permeability and rate of infiltration?
Permeability is the ability of a material to allow fluids to pass through it. Higher permeability means fluids can infiltrate more easily into the material, leading to a faster rate of infiltration. Conversely, lower permeability means fluids pass through at a slower rate, resulting in slower infiltration.
