Which of the following gases has the lowerst rate of diffusion under the same conditions of temperature and pressure? [H = 1, O = 16, Ne = 20, CI = 35]A. ChlorineB. HydrogenC. NeonD. Oxygen
Question
Which of the following gases has the lowerst rate of diffusion under the same conditions of temperature and pressure? [H = 1, O = 16, Ne = 20, CI = 35]A. ChlorineB. HydrogenC. NeonD. Oxygen
Solution
The rate of diffusion of a gas is inversely proportional to the square root of its molar mass. This is according to Graham's law of diffusion.
Here are the molar masses of the gases mentioned:
A. Chlorine (Cl2) = 352 = 70 B. Hydrogen (H2) = 12 = 2 C. Neon (Ne) = 20 D. Oxygen (O2) = 16*2 = 32
From these values, we can see that Chlorine has the highest molar mass. Therefore, it will have the lowest rate of diffusion under the same conditions of temperature and pressure.
So, the answer is A. Chlorine.
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