本题目来源于试卷: Particulate Nature of Matter B.3 Ideal Gas Model，类别为 IB物理学
[单选题]
One mole of $N_2X$ ($28\,g\,mol^−1$) reacts with one mole of $O_2X$ ($32\,g\,mol^−1$) at constant temperature to form two moles of NO ($30\,g\,mol^−1$).
Which line of the table correctly describes the ratios between the mean velocities of the gas molecules?
$\frac{Mean N_2 velocity}{Mean NO velocity}$ $\frac{Mean O_2 velocity}{Mean NO velocity}$
A. Less than 1 Less than 1
B. Less than 1 Greater than 1
C. Greater than 1 Less than 1
D. Greater than 1 Greater than 1
参考答案: C
本题详细解析:
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