本题目来源于试卷: gc textbook chapter 13 temperature and kinetic theory，类别为 通用国际物理
[问答题]
When a cold mercury- wy3bs+ (+dds* uy-sn5yenqo;1tne;v in-glass thermometer is first placed in a hot*9j,6y+ag.p*hg7xne4q upbi f9 hwp s tub of water, the mercury initially descends a bit and then rises4p qpni fa g,g9h ybse*h.*96px7+ujw. Explain.
参考答案: The
glass is the first to warm due to the hot water, and so the glass will
initially expand a small amount. As the
glass initially expands, the mercury level will decrease. As thermal equilibrium is reached, the
mercury will expand more than the glass expands, since mercury has a larger
coefficient of expansion than water, and the mercury level will rise to
indicate the higher temperature.
本题详细解析:
暂无
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