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]
Explain why it is dangerodpqg 7rwi,u:(po/3;lv val8w wr-ke3o jc6(,jy uz2qus to open the radiator cap of an overheated automobile engineewur6(k cj-2j o3z yq,.
参考答案:
The water in the radiator of an overheated
automobile engine is under pressure.
Similar to a pressure cooker, that high pressure keeps the water in the
liquid state even though the water is quite hot – hotter than 100oC. When the cap is opened, the pressure is
suddenly lowered, and the superheated water boils quickly and violently. That hot steam can cause severe burns if it
contacts the skin. Also, the violent
bursting forth of steam propels some of the overheated water out of the
radiator as well, which can spray onto the person opening the cap and again cause
serious burns.
本题详细解析:
暂无
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