The density of a gas A is twice that of B. Molecular mass of A is half of molecular mass of B. The ratio of partial pressure of A and B is:

Question

The density of a gas A is twice that of B. Molecular mass of A is half of molecular mass of B. The ratio of partial pressure of A and B is: (A) 1 / 4 (B) 1 / 2 (C) 4 / 1 (D) 2 / 1

Tardigrade Admin · Accepted Answer

PV = nRT P=( text WRT /M V)=(d R T/M) (PA/PB)=(dA/dB) × (MB/MA) =(2/1) × (2/1)=(4/1)

Q. The density of a gas A is twice that of B. Molecular mass of $A$ is half of molecular mass of $B$ . The ratio of partial pressure of $A$ and $B$ is:

$1/4$

$1/2$

$4/1$

$2/1$

$P V = n RT$

$P = \frac{WRT}{M V} = \frac{d RT}{M}$

$\frac{P _{A}}{P _{B}} = \frac{d _{A}}{d _{B}} \times \frac{M _{B}}{M _{A}}$

$= \frac{2}{1} \times \frac{2}{1} = \frac{4}{1}$

Q. The density of a gas A is twice that of B. Molecular mass of A is half of molecular mass of B. The ratio of partial pressure of A and B is:

1/4

1/2

4/1

2/1