本题目来源于试卷: gc textbook chapter 13 temperature and kinetic theory，类别为 IB物理学
[问答题]
When a cold mercury-in-glass thermometer is 9yd,til2v6l ofirst placed in a hot tub of wate3c/ b0 gnax0i;cdy3ah r, the mercury initially descends a bit and then risesaac/ncyx;b03d 0i h3 g. 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
| 
