英语翻译If a free carbon atom were to form 2 covalent bonds with

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英语翻译
If a free carbon atom were to form 2 covalent bonds with two free hydrogen atoms it has been calculated that about 1028KJ/mol of energy would be released.To promote a 2s electron in carbon to a 2p orbitals(excitation energy )and then to hybridise the 4 orbitals to give 4 sp3 hybrid orbitals (hybridisation energy)takes 405KJ/mol.This energy though is more than compensated for by the energy released on forming 4 covalent bonds,2057KJ/mol.Thus carbon forms compounds in which the carbon forms four rather than two bonds.
这段话是说405KJ/mol是被2057KJ/mol补偿了么,可是1028KJ/mol也比405大哇.

大概看了一下,把意思告诉你,没有逐字翻译
如果一个自由C原子想要和两个自由H原子成共价键,需要1028KJ/mol的能量.激发一个C原子中2S轨道的电子到2P轨道得到4个SP3杂化轨道需要405KJ/mol的能量.这个能量小于形成4个共价键所需要的2057KJ/mol.所以C成结合4个原子而不是成两个共价键
再问：我只是不明白如果形成两个共价键的话，405还是小于1028的。。。
再答：正因为405小于1028所以C以SP3成键而不是在2P上成共价键
再问：也就是说成键的话电子会以所需能量最少的方式对吧。。。谢谢您哈。。。。我本来对这个SP3完全是空白。。。。

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