本题目来源于试卷: Models of Matter A.4 The Mole，类别为 IB化学
[单选题]
Refer to the following -kkjnjlnw 3xy2(i 0 u/chemical equat:a;iq+gk zeg1z u izr n::5i4n*d0qpi ion:2$NO_2(g)$ $\rightarrow$ $N_2O_4(g)$
At the same temperature and pressure,25.0$cm^3$ of nitrogen dioxide $(NO_2)$ gas is completely converted to dinitrogen tetroxide ($N_2O_4$) gas.What will be the volume of $N_2O_4$ produced?
A. 10.0 $cm^3$
B. 12.5 $cm^3$
C. 25.0 $cm^3$
D. 50.0 $cm^3$
参考答案: B
本题详细解析:
Based on the balanced 7s/(agdtc e )nchemical equation, the number of moles of $NO_2$ is twice that of $N_2O_4$.Avogadro's law states that the volume of a gas is directly proportional to the number of moles of the gas present $(\frac{25}{2}=12.5)$.
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