What is metallic or electronic conductivity? On what factors does it depend?
(N/A) Definition: The flow of electric current through metals due to the movement of electrons is known as metallic or electronic conductivity.
Factors affecting metallic conductivity:
$i$. Nature and structure of the metal.
$ii$. Number of valence electrons per atom.
$iii$. Temperature: As the temperature increases,the conductivity decreases because of the increased vibration of metal ions which hinders the flow of electrons.
Key characteristic: Since electrons enter at one end and exit through the other,the chemical composition of the metallic conductor remains unchanged.
Factors affecting metallic conductivity:
$i$. Nature and structure of the metal.
$ii$. Number of valence electrons per atom.
$iii$. Temperature: As the temperature increases,the conductivity decreases because of the increased vibration of metal ions which hinders the flow of electrons.
Key characteristic: Since electrons enter at one end and exit through the other,the chemical composition of the metallic conductor remains unchanged.
Explore More
Similar Questions
The dissociation constant of acetic acid is $1.75 \times 10^{-5}$ and $\Lambda _{CH_3COOH}^o = 370.6 \times 10^{-4} \, S \, m^2 \, mol^{-1}$. The specific conductance of $0.01 \, M$ acetic acid solution will be:
Difficult
View SolutionThe equivalent conductance of a monobasic acid at infinite dilution is $348 \ ohm^{-1} \ cm^2 \ eq^{-1}$. If the resistivity of the solution containing $15 \ g$ of the acid (molecular weight $49$) in $1 \ L$ is $18.5 \ ohm \ cm$,what is the degree of dissociation of the acid? (Answer in percentage)
Medium
View SolutionSpecific conductance of $0.1 \, M$ nitric acid is $6.3 \times 10^{-2} \, \Omega^{-1} cm^{-1}$. The molar conductance of the solution is ............... $\Omega^{-1} cm^2 mol^{-1}$.
Medium
View SolutionLimiting molar conductivity of $NH_4OH$ [i.e.,$\Lambda ^o_{m(NH_4OH)}$] is equal to:
DifficultAIPMT 2012
View SolutionAssertion : On increasing dilution,the specific conductance keeps on increasing.
Reason : On increasing dilution,the degree of ionization of a weak electrolyte increases and the mobility of ions also increases.
Reason : On increasing dilution,the degree of ionization of a weak electrolyte increases and the mobility of ions also increases.
MediumAIIMS 2016
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo