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What properties of silver make it useful to humans?
Examples of useful properties: hardness, resistance to corrosion, high thermal conductivity, high electrical conductivity, ductility, maleability, high melting point, easy machining, possibilty to form alloys, insolubility in water, etc.
Which conductivity of water is better Either low conductivity of water is better or high conductivity of water is better?
Low conductivity is better if you don't want electricity to pass. High conductivity is better if you do want electricity to pass. Also, water itself is actually an insulator (very low conductivity) but the impurities in water can be great conductors. Pure water will stop electric flow, but it is very difficult (outside of a lab) to get truly pure water.
Why should the coefficient of thermal expansion of a refractory metal be the lowest?
refractory metals have high melting points and are used in extremely hot environments; if expansion coefficient is lower this prevents high stresses that can develop due to thermal gradients during the high heat up. It helps to have high thermal conductivity as well
Is conduction faster in metals than in other solids because metals have free electrons that transfer thermal energy?
Yes, the free electrons in metals are responsible for the high thermal conductivity.
Does helium conduct heat or electricity?
thermal conductivity of gas is directly proportional to mean free path, mean particle speed and heat capacity. Due to small size and lower mass, helium has high mean free path and mean particle speed; hence has high thermal conductivity.
Do elements that have high electric conductivity also have high thermal conductivity?
Usually it is, but exceptional case is of Graphite which has low thermal conductivity.
Does copper possess high or low thermal conductivity?
Copper has a high thermal conductivity, not low. This is a good generalization of any metal, although they vary in conductivity.
A what is a material through which energy can be easily transferred as heat?
Any material which has high thermal conductivity can easily transfer energy as heat. As far as I know, all metals have high thermal conductivity. Copper, gold and silver especially have high thermal conductivity. Diamond and graphene have VERY high thermal conductivity, so this is not restricted to only metals.
Is newspaper a thermal conductor?
Yes, it is a material with a high thermal conductivity.
What properties of silver make it useful to humans?
Examples of useful properties: hardness, resistance to corrosion, high thermal conductivity, high electrical conductivity, ductility, maleability, high melting point, easy machining, possibilty to form alloys, insolubility in water, etc.
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.
What Thermal conductors?
have high conductivity; have low specific heat
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.
Specific conductivity of water in power plants?
Specific conductivity is a measure of the ability of water to conduct an electrical current. It is highly dependent on the amount of dissolved solids (such as salt) in the water. Pure water, such as distilled water, will have a very low specific conductance, and sea water will have a high specific conductance.
How Can Thermal Energy Be Moved?
Using a material with a high thermal conductivity is best. For example silver and copper both have a high thermal conductivity. If you hold one end of a copper pipe in fire, the other end will heat up quite rapidly.
What is the thermal conductivity of olivine?
Heat capacity and thermal conductivity of olivine is very high in comparison to known rocks so it is preferably used for heat storage and sauna blocs.
Electrical contact materials used in switches brushes and relays must possess which thermal conductivity and melting point?
Electrical contact materials used in switches brushes and relays must possess high thermal conductivity and high melting point.High thermal conductivity dissipates heat effectively and high melting point is to avoid fusing in case of accidental overheating.
