Navigate

The root mean square speed of oxygen molecule (O₂) at a certain temperature is v.

The root mean square speed of oxygen molecule (O₂) at a certain temperature is v. If the temperature is doubled and the oxygen gas dissociates into atomic oxygen, the rms speed would be

Options

(a) v
(b) √2 v
(c) 2v
(d) 2√2 v

Correct Answer:

2v

Explanation:

The rms speed is given by
v(rms) = √(3RT / M)
[v(rms)]o₂ = √(3RT / M) = √(3RT / M) = v
[v(rms)]o = √[3R(2T) / M] = 2 √(3RT / M) = 2v

DCE2006
admin:

Related Questions

  1. A capacitor of 2.5 μF is charged through a resistor of 4 MΩ. In how much time
  2. A small angled prism of refractive index 1.4 is combined with another small angled prism
  3. A metal conductor of length 1m rotates vertically about one of its ends at angular
  4. In which of the processes, does the internal energy of the system remain constant?
  5. The speed of light in media M₁ and M₂ are 1.5×10⁸ ms⁻¹ and 2×10⁸ ms⁻¹ respectively.