MereTeacher

JEE • NEET • FOUNDATION

JEE · NEET Previous Year Question

$On heating one end of a piece of a metal, the other end becomes hot because of$

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

A $energised electrons moving to the other end$
B $minor perturbation in the energy of atoms$
C $resistance of the metal$
D $mobility of atoms in the metal.$

Correct answer: A

Solution

(a) Conductivity of heat in metals is due to the presence of free electrons, which move due to increase in temperature.

More Electrochemistry PYQs

$The equivalent conductance of M/32 solution of a weak monobasic acid is 8.0 mho c m^{2} and at infinite dilution is 400 mhos\dots$
$Which out of the following is a correct equation to show change in molar conductivity with respect to concentration for a weak ele\dots$
$The standard reduction potentials at 295 K for the following half cells are given below: N O_{3}^{-} + 4 H^{+} + 3e- \to NO(g\dots$
$If the resistance of 0.1 MKCl solution in a conductance cell is 300Ω and conductivity is\dots$
$The anodic half-cell of lead-acid battery is recharged using electricity of 0.05 Faraday. The amount of PbSO_{4} el\dots$