x L of N 2 at STP contains 3 × 1022 molecules. The numbe of molecules in x / 2 L of ozone at STP will be

Question

x L of N 2 at STP contains 3 × 1022 molecules. The numbe of molecules in x / 2 L of ozone at STP will be (A) 3 × 1022 (B) 1.5 × 1022 (C) 1.5 × 1021 (D) 1.5 × 1011

Tardigrade Admin · Accepted Answer

Equal volume of gases contain equal number of molecules at STP. ∴ Half volume (x/2) L will contain half number of molecules. i.e. (1/2) × 3 × 1022=1.5 × 1022

Q. $xL$ of $N_{2}$ at STP contains $3 \times 1 0^{22}$ molecules. The numbe of molecules in $x /2 L$ of ozone at STP will be

$3 \times 1 0^{22}$

$1.5 \times 1 0^{22}$

$1.5 \times 1 0^{21}$

$1.5 \times 1 0^{11}$

Equal volume of gases contain equal number of molecules at STP.

$∴$ Half volume $\frac{x}{2} L$ will contain half number of molecules.

i.e. $\frac{1}{2} \times 3 \times 1 0^{22} = 1.5 \times 1 0^{22}$

Q. xL of N2​ at STP contains 3×1022 molecules. The numbe of molecules in x/2L of ozone at STP will be

3×1022

1.5×1022

1.5×1021

1.5×1011