HC Verma Chapter 23 Problem 43

Problem

T raised 300->1200 K. Factor change in rms speed?

Key Concepts

v_rms ~ sqrt(T)

Solution

Factor=sqrt(1200/300)=sqrt(4)=2

Answer

rms speed doubles

Concept Check

Quadrupling T doubles rms speed.

Common Mistakes

Using linear scaling.

Practice Tip

T must be in Kelvin.