Why at low pressure gases are a good conductor of electricity
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At high pressure, the mean free path of electrons is quite low. The electrons don't get enough time to get accelerated. If the electrons don't accelerate for long, they can't gain the high velocity or kinetic energy that is required to ionize other atoms.
While your argument that if there are more atoms, more electrons can be obtained through ionization makes sense, you don't account for the fact that only high energy electrons can ionize electrons from the gas atoms. If there are too many gas atoms, the electrons collide much before they have enough kinetic energy to ionize the atoms. If you cannot get a high number of electrons moving, you won't get sufficient current.
When the gas pressure is low (but not too low), the electrons get enough time (or distance) to accelerate. By the time they collide with an atom, they have gained enough kinetic energy from the electric field to ionize other atoms. Even though there are not many atoms from which electrons can be obtained compared to a gas at high pressure, there is more than enough to produce a measurable current.
If the gas pressure goes too low, your argument comes to play. There won't be enough atoms to ionize and the conductivity decreases.
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While your argument that if there are more atoms, more electrons can be obtained through ionization makes sense, you don't account for the fact that only high energy electrons can ionize electrons from the gas atoms. If there are too many gas atoms, the electrons collide much before they have enough kinetic energy to ionize the atoms. If you cannot get a high number of electrons moving, you won't get sufficient current.
When the gas pressure is low (but not too low), the electrons get enough time (or distance) to accelerate. By the time they collide with an atom, they have gained enough kinetic energy from the electric field to ionize other atoms. Even though there are not many atoms from which electrons can be obtained compared to a gas at high pressure, there is more than enough to produce a measurable current.
If the gas pressure goes too low, your argument comes to play. There won't be enough atoms to ionize and the conductivity decreases.
hope it helps
plz mark as brainliest
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