0
Rate this Study Guide:
☆☆☆☆☆A material is said to be a superconductor if when it is brought down to a critical low temperature it loses its resistivity completely.
<><><>
A superconductor is a material that has zero electrical resistance at certain temperatures. For example, in a ring of superconducting material, if you induce a current to flow in a circle, it will continue flowing for ever. So far, it has only been possible to create superconductors at cryogenic (i.e., "supercold") temperatures.
<><><>
Superconductivity is a property of a substance at a given temperature, not of a substance at any temperature.
Superconductors are things that have no electrical resistance when they are at low enough temperatures, typically close to absolute zero i.e. 0 Kelvin or about -273 degrees C.
There are also 'high-temperature' superconductors that operate at about 70 degrees K (-203 degrees C).
We haven't yet found a substance that works as a superconductor at room temperature there is a lot of research on-going. The aim is to try to find metal alloys or other substances that will behave as superconductors at temperatures which are much closer to room temperature than to absolute zero i.e. 0 Kelvin or about -273 degrees C.
A conductor that allows electricity to flow easily ~APEX
Temperature measures how fast molecules are moving or in scientific terms it measures the AVERAGE KINETIC ENERGY in a system. Temperature measures how fast molecules are moving. :):)
Alloys are useful (if this is what the question is getting at) because mixing elements of the periodic table alters their colligative properties.
i.e. mixing two metals could change substance's melting point, allowing it to more easily resist high temperatures. Also, mixing metals can change the way they bind together, and create an altogether stronger material than you can find using any single metal alone.They can improve a metal's properties
All chemical bonds, including those found in network solids, derive from the electromagnetic force. Positively charged protons attract negatively charged electrons. Although atoms start off with an equal number of protons and electrons, and are therefore electrically neutral, the electrons rearrange themselves in ways that create attractions between atoms. Covalent bonds
Its polar end mixes with the water so it can be washed away. ~APEX
Adding a solute to a solution, or some liquid, causes the boiling point to increase.
Think about water, sometimes people throw salt in their water when they're boiling noodles. This causes the boiling point to increase so the water is actually at a higher temperature (although most of the time the amount of salt added isn't nearly enough to cause any measurable change).
ions
The wright brothers figured out how to outfit the plane with wings that flapped, similar to birds' wings. - Apex- Chemistry Semester 2.
A superconductor.
hydrogen bonding
Crystalline solids have particles that are arranged in a regular pattern and amorphous solids do not
The answer is "Ions in water" on Apex
