Question

The rms speed of a gas having diatomic molecules at temperature T (in Kelvin) is 200 m/s. If the temperature is increased to 4T and the molecules dissociate into monoatomic atoms,the rms speed will become:

• A. 400 m/s
• B. 200 m/s
• C. 800 m/s
• D. 200$\sqrt{2}$ m/s
• E. 400$\sqrt{2}$ m/s

Answer 1

Answer: (E)

400$\sqrt{2}$ m/s

Answer 2

The correct answer is (E):400$\sqrt{2}$ m/s