Question

There are N molecules of a gas in a box. If the number of
molecules is increased to 2 N, then ther.m.s. speed of the
molecules will
(a) increase
(b) decrease
(c) not change
(d) be halved​

Answer 1

Answer:

b) decrease

Explanation:

as box has n molecules before they are having they're own speed when 2 times molecules are increased then they don't have enough space to travel with same speed as it was there when box was contained n molecules