Internal energy and r.m.s. speed (id: d28f3cd3f)

本题目来源于试卷: Internal energy and r.m.s. speed，类别为 美国物理杯赛(Physics Bowl)

[单选题]
14.37: A new element isgkskg4 .)mvt13pj pj2 0qtow:, xia4ydiscovered and named PhysicsBowlium (atomic symbol Phys). Its entry onto the standard periodic table of elements appears as in the figure (with Helium shown as well). Given a sample of Phys which acts as a perfect monatomic ideal gas, what is the root-mean-square speed of the atoms of the gas if the samxaiw:tqy,40o ple is at $20^{\circ}C$?

A. 1.04 m/s
B. 4.00 m/s
C. 33.0 m/s
D. 126 m/s
E. 191 m/s


参考答案:  D


本题详细解析: 暂无

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