Question

if the discharge tube is filled up with various gases in turn,will the discharge in all gases take place at the same electrode potential?

Answer 1

Answer:

Assertion : If different gases are filled turn by turn at the same pressure in the discharge tube the discharge in them takes place at the same potential. <br> Reason : The discharge depends only on the pressure of discharge tube and not on the ionisation potential of gas.

Answer 2

Explanation:

The discharge depends on both pressure of discharge tube and ionisation potential of gas. Since the ionisation potential of different gases are different, hence the discharge in different gases takes place at different potential.