Two flasks A and B of 500 mL each are filled | vedclass

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Question

(A) According to the Ideal Gas Equation,$PV = nRT$. Given $P$,$V$,and $T$ are the same for both flasks,the number of moles $n = \frac{PV}{RT}$ must be

Vedclass · Accepted Answer

Same number of molecules

Vedclass · Answer

(A) According to the Ideal Gas Equation,$PV = nRT$. Given $P$,$V$,and $T$ are the same for both flasks,the number of moles $n = \frac{PV}{RT}$ must be the same for both gases. Since $n$ is the same,the number of molecules $(n 	imes N_A)$ is also the same. However,$O_2$ is a diatomic molecule ($2$ atoms) and $SO_2$ is a triatomic molecule ($3$ atoms). Therefore,the number of atoms will be different ($2n 	imes N_A$ for $O_2$ and $3n 	imes N_A$ for $SO_2$). Thus,both flasks contain the same number of molecules.

Two flasks $A$ and $B$ of $500 \ mL$ each are filled with $O_2$ and $SO_2$ respectively at $300 \ K$ and $1 \ atm$ pressure. Then the flasks contain:

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