Answer:
N₂= 697.24 m/s,
O₂= 652.38 m/s
CO₂= 393.35 m/s
Explanation:
The rms speed,
of a gas is the following:
<em>where R: is the ideal gas constant, T: is the temperature and M: is the molar mass. </em>
<u>Knowing that the molar mass of the given gases are:</u>
N₂ = 14.0067 g/mol = 14.0067x10⁻³ kg/mol
O₂ = 15.999 g/mol = 15.999x10⁻³ kg/mol
CO₂ = 44.009 g/mol = 44.009x10⁻³ kg/mol
Also that T is 0 °C = 273 K, and R = 8.314 J/ K.mol = 8.314 kg.m². s⁻². K⁻¹. mol⁻¹. The rms speed of the gases are:
For N₂:
![v_{rms} = \sqrt \frac{3 \cdot 8.314 \frac{kg.m^{2}}{s^{2}.K.mol} \cdot 273 K}{14.0067 \cdot 10^{-3} \frac{kg}{mol}} = 697.24 m/s](https://tex.z-dn.net/?f=%20v_%7Brms%7D%20%3D%20%5Csqrt%20%5Cfrac%7B3%20%5Ccdot%208.314%20%5Cfrac%7Bkg.m%5E%7B2%7D%7D%7Bs%5E%7B2%7D.K.mol%7D%20%5Ccdot%20273%20K%7D%7B14.0067%20%5Ccdot%2010%5E%7B-3%7D%20%5Cfrac%7Bkg%7D%7Bmol%7D%7D%20%3D%20697.24%20m%2Fs%20)
For O₂:
For CO₂:
Therefore, the rms speed of N₂ is 697.24 m/s, of O₂ is 652.38 m/s and of CO₂ is 393.35 m/s
I hope it helps you!
Electromagnetic waves can travel through a vacuum; mechanical waves require a medium.
3NaOH + FeCl3 → 3NaCl + Fe(OH)3
Your answer would be D. "Mam"