Question

What is the conductivity of metals at 0 Kelvin?

Answer 1

may help i hope...

Answer 2

i think the conductivity of pure metal is zero at 0 K due to zero entropy, their will be no movement of electrons. what you think...... in books and everywhere it is given conductivity is increasing with decreasing temperature. that's ok , but what will happen at 0 K.

Answer 3

given me the explanation with regarding to entropy....

Answer 4

It approaches zero electrical resistance when the temperature of the material approaches its critical temperature - around 4K. But since you are not asking when the resistance is zero, but instead what exaclty happens at 0K - there is no empirical data for that. In theory there should be no movement at all at 0K, and thus no electric flow at all. But no electricity does not necessarily mean infinite resistance, because if there is no movement, nothing will be actually trying to overcome the resistance, no matter what it is.
So I do think that the conductivity will be infinite, but there will be no electric flow, since there is no movement, and since no work is done, this system will have zero entropy.

Answer 5

thanks for this explanation.