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Why is the thermal conductivity of a liquid larger than of a gas?
Wiki User
∙ 11y ago
The molecules in a liquid are densely packed than in a gas. The shorter distance between the molecules allows the energy to transfer more efficiently between molecules, therefore allowing more heat to pass between them.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoI'm not entirely sure of this myself, but the way I had it explained to me is that the molecules in a solid are more densely packed in a liquid. The shorter distance between the molecules allows the energy to transfer more efficiently between molecules, therefore allowing more heat to pass between them.
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Do nonmetals or metals have high thermal and electrical conductivity?
Both thermal conductivity and electrical conductivity tend to be higher in metals than in most other materials.
Does a cotton has higher thermal conductivity than silk?
yes
Why does a metal spoon feel cooler than a piece of wood at 20C?
Because metal has better thermal conductivity than wood. Thermal conductivity depends of the atomic and molecular structure of the stuff. The air is a poor thermal conductor, but water is better.
What has the highest thermal conductivity?
Diamond is the best thermal conductor around room temperature. Diamond has a thermal conductivity of more than 2,000 watts per meter per Kelvin, which is five times higher than the best metals such as copper.
Does glass have a higher thermal conductivity than wood?
Depending on the glass, it has a K value between 0.8 and 1.1 Wood has a K value of between 0.04 and 0.4 The higher the K value the better the thermal conductivity. Thus glass has a higher thermal conductivity than wood.
What is conductivity bridge?
The thermal conductivity detector (TCD) is a bulk property detector and a chemical specific detector commonly used in gas-liquid chromatography. [1]This detector senses The thermal conductivity detector (TCD) is a bulk property detector and a chemical specific detector commonly used in gas-liquid chromatography. [1]This detector senses changes in the thermal conductivity of the column effluent and compares it to a reference flow of carrier gas. Since most compounds have a thermal conductivity much less than that of the common carrier gases of helium or hydrogen, when an analyte elutes from the column, the effluent thermal conductivity is reduced and produces a detectable signal. changes in the thermal conductivity of the column effluent and compares it to a reference flow of carrier gas. Since most compounds have a thermal conductivity much less than that of the common carrier gases of helium or hydrogen, when an analyte elutes from the column, the effluent thermal conductivity is reduced and produces a detectable signal.
What are conductivity metals?
Metals have a higher electrical and thermal conductivity than nonmetals.
Do nonmetals or metals have high thermal and electrical conductivity?
Both thermal conductivity and electrical conductivity tend to be higher in metals than in most other materials.
Does a cotton has higher thermal conductivity than silk?
yes
Why does a metal spoon feel cooler than a piece of wood at 20C?
Because metal has better thermal conductivity than wood. Thermal conductivity depends of the atomic and molecular structure of the stuff. The air is a poor thermal conductor, but water is better.
What has the highest thermal conductivity?
Diamond is the best thermal conductor around room temperature. Diamond has a thermal conductivity of more than 2,000 watts per meter per Kelvin, which is five times higher than the best metals such as copper.
Does glass have a higher thermal conductivity than wood?
Depending on the glass, it has a K value between 0.8 and 1.1 Wood has a K value of between 0.04 and 0.4 The higher the K value the better the thermal conductivity. Thus glass has a higher thermal conductivity than wood.
What is the thermal conductivity difference between cast aluminum and sheet plate aluminum?
I don't have a numeric answer for you, however, I do know that sheet aluminum has better thermal conductivity than cast. It has to do with the way that cast aluminum cools.
What dielectric materials are good thermal conductors?
The best example of a dielectric with good thermal conduction is diamond, which is almost a perfect dielectric, but also has a thermal conductivity (up to 41kW·m−1·K−1) that is better than most metals (e.g. silver has a thermal conductivity of 0.430kW·m−1·K−1).
Why are pan made from different materials?
Iron and aluminum thermal conductivity, fire burn immediately hot, if the handle of the pot is a stronger thermal conductivity something hand contact will be scalded, not strong thermal conductivity of wood and plastic, so use them. The thermal conductivity of aluminum is stronger than iron, but do not recommend cooking with aluminum pots, wok cooking can supplement some lack of iron, and aluminum can not. Aluminum pan and cook over time will iron deficiency.
Can an object feel hotter than another if they have same temperature?
Yes - if they have different properties of thermal conductivity.
Why do you fell hotter on a humid day?
it has something to do with physics: every "material" has its own thermal conductivity. that means the energy transferred increases as the thermal conductivity of the material increases. thats why if you tough a piece of wood which has the exact same temperature of a piece of metal it still will feel less warm. because wood's thermal conductivity is lower than metals, it will "transfer" less energy (energy = temperature) per second to your finger, so you will feel it less. so figure thermal conductivity of humid air is higher than dry air.
