
The value of compression of two gases, the rate of diffusion through a fine hole is given by
$
A.\,\,\,\,\dfrac{{r1}}{{r2\;}} = \dfrac{{P1}}{{P2}}\sqrt {\dfrac{{M1}}{{M2}}} \\
B.\,\,\,\dfrac{{r1}}{{r2}} = \dfrac{{P1}}{{P2}}\sqrt {\dfrac{{M2}}{{M1}}} \\
C.\,\,\,\dfrac{{r1}}{{r2}} = \sqrt {\dfrac{{P1}}{{P2}}} \dfrac{{M1}}{{M2}} \\
D.\,\,\,\dfrac{{r1}}{{r2}} = \sqrt {\dfrac{{P1}}{{P2}}} \dfrac{{M2}}{{M1}} \\
$
Answer
487.2k+ views
Hint:
The rate of diffusion of a gas is inversely proportional to the square root of its molar mass. Gas with the lowest molar mass will have the highest rate of diffusion.
Complete step by step answer:
-Gaseous particles tend to undergo diffusion because they have kinetic energy. Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy.
-Graham’s Law states that the effusion rate of a gas is inversely proportional to the square root of the mass of its particles.
-The value of compression of two gases, the rate of diffusion through a fine hole is given by:
$\dfrac{{r1}}{{r2}} = \dfrac{{P1}}{{P2}}\sqrt {\dfrac{{M2}}{{M1}}} $
-The rate of diffusion depends on several factors such as the concentration gradient (the increase or decrease in concentration from one point to another), the amount of surface area available for diffusion, and the distance the gas particles must travel.
Hence, option B is correct.
Note:
Diffusion is inversely proportional to molecular weight. Therefore, NH3 has the highest diffusion rate, whereas, carbon dioxide has the greatest molecular mass and should be expected to diffuse the slowest.
The rate of diffusion of a gas is inversely proportional to the square root of its molar mass. Gas with the lowest molar mass will have the highest rate of diffusion.
Complete step by step answer:
-Gaseous particles tend to undergo diffusion because they have kinetic energy. Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy.
-Graham’s Law states that the effusion rate of a gas is inversely proportional to the square root of the mass of its particles.
-The value of compression of two gases, the rate of diffusion through a fine hole is given by:
$\dfrac{{r1}}{{r2}} = \dfrac{{P1}}{{P2}}\sqrt {\dfrac{{M2}}{{M1}}} $
-The rate of diffusion depends on several factors such as the concentration gradient (the increase or decrease in concentration from one point to another), the amount of surface area available for diffusion, and the distance the gas particles must travel.
Hence, option B is correct.
Note:
Diffusion is inversely proportional to molecular weight. Therefore, NH3 has the highest diffusion rate, whereas, carbon dioxide has the greatest molecular mass and should be expected to diffuse the slowest.
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