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Fav十万个为什么
为什么有的金属放在手里就融化？
有的金属放在手里就融化，主要是因为其熔点低、热导率高以及人体温度的影响。
1、金属熔点低：某些金属，如 gallium（镓，熔点约29.76°C）和 rubidium（铷，熔点约39.31°C），具有非常低的熔点，接近或低于人体体温（约37°C）。当这些金属接触到手掌时，人体的温度足以使它们达到熔点并开始融化。
2、热导率高：这些金属通常具有较高的热导率，能够迅速传导热量。当它们与较温暖的手掌接触时，可以快速吸收手部的热量，导致自身温度迅速上升至熔点。
3、人体温度的影响：人体的正常体温约为37°C，对于某些低熔点金属来说，这个温度已经足够高，足以引发融化。当这些金属与手接触时，人体的温度就像一个热源，促使金属达到熔点并融化。
总结：有的金属放在手里就融化，主要是因为其熔点低、热导率高以及人体温度的影响。
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