The Earth's magnetic field is generated as the molten iron of the Earth's outer core revolves around its solid inner core; when surges in the molten iron occur, magnetic tempests are created.
地球磁场是由地球外核的熔铁围绕固体内核旋转而产生的;当铁水激增,就会发生磁暴。
Iron as an element is a solid. That's it's most stable state at room temperature and pressure, right, and so on. And then we can figure out heats of formation.
铁单质是固态,这是他在室温和常压下,最稳定的状态,然后我们,可以算出生成热,现在这个。
Soft material, such as cloth, does not carry sound so well as iron and other solid.
软质材料如布,不像铁和其他固体那样好地传播声音。
Iron as an element is a solid. That's it's most stable state at room temperature and pressure, right, and so on. And then we can figure out heats of formation.
铁单质是固态,这是他在室温和常压下,最稳定的状态,然后我们,可以算出生成热,现在这个。
A molar enthalpy of or whatever, iron, as a solid at 298.15 Kelvin is zero.
98。15K下固态铁的,摩尔焓是零。
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