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 che 4*z(6s)0gesoavp hv7dbw qr2i 0avx0mical0.muur 9ovxq +*mcd,ihsra n8,u z0 r0 equation: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 chemical equation, the number of moles ofvhwzng yfnpq)6 5a .w2/mx4j1 $NO_2$ 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 $(\frac{25}{2}=12.5)$.
| 
