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What is the thermal conductivity of a perfect conductor?
A perfect conductor would have infinite thermal conductivity, meaning it can effectively transfer heat instantaneously without any temperature difference across its surface. In reality, perfect conductors do not exist, but materials such as metals like silver and copper have high thermal conductivity values relative to other materials.
What is non example about thermal conductivity?
A banana is a non-example.
Which sample most likely has the lowest density?
The sample with the lowest density would likely be the one that is the lightest for its volume. This can be achieved with materials like Styrofoam or a gas.
How would you explain the terms ductility and thermal conductivity mean?
Ductility refers to the ability of a material to be stretched without breaking. A ductile material can be drawn out into a wire or thread. Thermal conductivity refers to a material's ability to conduct heat. Materials with high thermal conductivity can quickly transfer heat.
What is the r value of material with a thermal conductivity of 2.0 and is 4 inches thick?
The r value of a material can be calculated by dividing the thickness of the material by its thermal conductivity. In this case, the r value would be 2 inches (4 inches / 2.0 = 2.0).
What does thermal conductors mean?
A thermal conductor allows heat to readily flow through itself. An example of a material with a low thermal conductivity would be air, and an example of a material with a high thermal conductivity would be steel.
What is the scientific name of styrofoam?
Styrofoam doesn't have a scientific name, since it is an object, but the closest would be it's official name, polystyrene thermal insulation material.
What is the thermal conductivity of a perfect conductor?
A perfect conductor would have infinite thermal conductivity, meaning it can effectively transfer heat instantaneously without any temperature difference across its surface. In reality, perfect conductors do not exist, but materials such as metals like silver and copper have high thermal conductivity values relative to other materials.
What is non example about thermal conductivity?
A banana is a non-example.
What material has high thermal conductivity but low electrical conductivity?
Someone wrote "what material has the highest R-value". This answer is not conducive to progress in their learning. The "r" in R-value stands for Resistance, that is, resistance to flow of heat. Conductivity is the reciprocal, or inverse, of the Resistivity. "Thermal Conductivity" is transfer of Heat. Since Heat is ultimately the jiggling around of small bits of Matter (fundamental particles like electrons, protons and neutrons), then atoms (assemblages of these 3 fundamental particles), then molecules (assemblages of similar or dissimilar atoms), or also the jiggling around of atoms within molecules) - then the material with the highest Resistivity would be the Absence of Matter, this is, Vacuum (not quite a material, strictly speaking, but "found" between the walls of a vacuum, or "Dewar", flask). For the material with (possibly) the lowest Resistivity, or highest Conductivity, try the Wikipedia article on "Thermal Conductivity". If you're a girl, it may be your best friend.
Which sample most likely has the lowest density?
The sample with the lowest density would likely be the one that is the lightest for its volume. This can be achieved with materials like Styrofoam or a gas.
Why conductivity of diamond is highest being a nonmetal?
It would help if you specify whether you are talking about thermal conductivity, or electrical conductivity. Diamond certainly doesn't has the highest electrical conductivity. Its thermal conductivity is one of the highest known, and - if a synthetic diamond is made from pure (99.9%) C-12, it is indeed the highest. The Wikipedia article attributes this to a strong covalent bonding.
How would you explain the terms ductility and thermal conductivity mean?
Ductility refers to the ability of a material to be stretched without breaking. A ductile material can be drawn out into a wire or thread. Thermal conductivity refers to a material's ability to conduct heat. Materials with high thermal conductivity can quickly transfer heat.
What is 2kf?
2kf typically refers to a measure of thermal conductivity, specifically in relation to the thermal conductivity of a fluid or material in a system. In some contexts, "kf" could represent the thermal conductivity of a fluid, and "2kf" would indicate a value that is twice that conductivity. However, without additional context, the exact meaning can vary, so it's essential to consider the specific field or application where this term is used.
What type of cup keeps water warm the longest-plastic paper styrofoam or glass and why results?
A glass cup would keep water warm the longest because glass is a good insulator and retains heat well compared to plastic, paper, or styrofoam which are poorer insulators. This is because glass has a lower thermal conductivity compared to the other materials, so heat escapes more slowly.
Does thermal conductivity play a role in the development of residual stresses in metal?
Answer In most applications, I would not expect Thermal conductivity to be a factor. Only in applications where the part is exposed to extreme heat or cold or large fluctuations in temperatures under loads.
What is the r value of material with a thermal conductivity of 2.0 and is 4 inches thick?
The r value of a material can be calculated by dividing the thickness of the material by its thermal conductivity. In this case, the r value would be 2 inches (4 inches / 2.0 = 2.0).
