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Why carbon has very low resistivity while coal or hydrocarbon have high resistivity?
Wiki User
∙ 14y ago
High resistivity is the inverse of conductivity, and Carbon is not a good conductor (although it could be a better conductor than most hydrocarbons). Here are a few examples:
Carbon - 0.07 x 106 S cm-1 (not a good conductor)
Silicon - 1.2 x 10-5 S cm-1 (not a good conductor - used for this purpose in microchips)
Copper - 59.6 × 106 S cm-1 (good conductor)
Atoms in metals (good conductors) are held together by bonds between nuclei and their electrons. Atoms in nonmetals (bad conductors) are held together due to the atmos' sharing of valence electrons (ie covalent bonds).
Conductivity has to do with how easily electrons can move. In metals, electrons are more free to move than nonmetals, resulting in better conductivity. Silver is the best conductor, I believe. Sorry for the run around, but the basic answer to your question is this: I suspect in hydrocarbons, the valence electrons are more restricted due to the covalent bonding to the hydrogen atoms.
Wiki User
∙ 14y ago
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Why coal is a hydrocarbon?
coal is a hydrocarbon because it is made up of hydrogen and carbon.
What are the hydrocarbon deposits?
coal,natural gas.
Carbonized remains of plants and animals?
Coal. Or, some other hydrocarbon.
Is carbon monoxide in coal?
No. But burning coal will likely produce carbon monoxide.
Who produces pure carbon?
pure carbon is coal, also diamonds are coal that was under a lot of pressure. so both diamonds and coal are pure carbon.
Why coal is a hydrocarbon?
coal is a hydrocarbon because it is made up of hydrogen and carbon.
Is carbon dioxide a hydrocarbon?
"Hydrocarbon" means something that contains only carbon and hydrogen. Coal is mainly carbon with small amounts of other materials. There are certainly hydrocarbon compounds present in coal, but for the most part it's probably more correct to think of it as an impure form of carbon.
What is hydocarbon?
A hydrocarbon is an organic compound that consists entirely of hydrogen and carbon. Some examples coal, petroleum and natural gas and paraffin.
Does burning coal give off carbon dioxide?
Yes, the burning of any hydrocarbon produces carbon dioxide. This equation illustrates the burning of a hydrocarbon.CH4 + 2O2 → CO2 + 2H2O + energyAs you can see carbon dioxide is produced along with water and energy.Yes burning coal or any carbon based fuel produces carbon dioxide.
What are the hydrocarbon deposits?
coal,natural gas.
Carbonized remains of plants and animals?
Coal. Or, some other hydrocarbon.
How can ashes be explained in the law of conservation and mass?
methane + Air > water and carbon dioxide CH3 + O2 > H2O + CO2 coal + air > water and carbon dioxide and ash coal =hydrocarbon + S+Ca+Mg +Si +O2> CO2 +H2O+ ash dependent on where you get the coal and how hot it burns and how dirty it is
Can any carbon based substance be turned into diamonds such as coal?
No. Diamonds are pure carbon. Coal is not; it contains all sorts of hydrocarbon molecules. The high-pressure, high-temperature processes for making synthetic diamonds start with pure carbon. The chemical vapor deposition process uses a very specific mixture of gases.
Why coal made out of carbon?
coal is made out of carbon because u need carbon to make coal
What is the difference between rank and grade of the coal?
Rank show the maturity of the coal from lignite to anthracite coal maturityincreases while grade show the purity of the coal, itbasicallydepends on total carbon .
Does coal use carbon dioxide?
coal is mainly carbon....
Is carbon the same as coal?
Yes, coal is composed from the element carbon.
