At a given temperature,the molar mass of gas | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) According to Graham's Law of diffusion,the rate of diffusion $(r)$ is inversely proportional to the square root of the molar mass $(M)$: $r \propt

Vedclass · Accepted Answer

$36$

Vedclass · Answer

(A) According to Graham's Law of diffusion,the rate of diffusion $(r)$ is inversely proportional to the square root of the molar mass $(M)$: $r \propto \frac{1}{\sqrt{M}}$ Let $r_A$ and $r_B$ be the rates of diffusion of gas $A$ and gas $B$,and $M_A$ and $M_B$ be their respective molar masses. $\frac{r_A}{r_B} = \sqrt{\frac{M_B}{M_A}}$ Given that $r_A = 3r_B$ and $M_A = 4$: $\frac{3r_B}{r_B} = \sqrt{\frac{M_B}{4}}$ $3 = \sqrt{\frac{M_B}{4}}$ Squaring both sides: $9 = \frac{M_B}{4}$ $M_B = 9 	imes 4 = 36$

At a given temperature,the molar mass of gas $A$ is $4$. If it diffuses $3$ times faster than gas $B$,what is the molar mass of gas $B$?

Similar Questions

Which of the following graphs represents the behavior of one mole of an ideal gas at $1 \ atm$ pressure for volume $V$ versus temperature $T$?

Equal masses of three non-reacting different ideal gases $X, Y$ and $Z$ are mixed in a sealed rigid container. If the temperature of the system remains constant at $400 \ K$,which of the following statements about gas $X$ can never be correct?

The most probable velocity of a gas at $7200 \ K$ is equal to the $RMS$ velocity of $He$ gas at $27^{\circ} C$. The gas is

Which of the following gas mixtures is not applicable for Dalton's law of partial pressure?

If $4 \ g$ of oxygen diffuses through a fine hole,how many grams of hydrogen will diffuse under the same conditions?

Vedclass Test Series

Exam Paper Generator

Online Exam Module