Question

Total number of moles of oxygen atoms in $3$ litre $O_3\left(g\right)$ atv ${27}^{o}C$ and $8.21$ atm are:

• A. $3$
• B. $1$
• C. $2$
• D. None of these

Answer 1

The correct option is A $3$

$P_1{V}_1/T_1=P_2{V}_2/T_2$

$dfrac8.2times3300=dfrac1times{V}_{2}273$

$V_2=22.4133L$

mole of $O_3=22.4133/22.4=1$ mole

mole of O atom$=1times3=3$

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