Question

The temperature of an ideal gas is increased from 120 K to 480 K. If at 120 K the root-mean-square velocity of the gas molecules is v, at 480 K it becomes :

• A. 4v
• B. 2v
• C. v/2
• D. v/4

Answer 1

Answer: (B)

2v

Answer 2

$v \propto \sqrt{T}$