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单词 Formation Enthalpy
释义

Formation Enthalpy

英语例句库

Triaminoguanidine is a kind of non-azide nitrogen-rich flammable compound, which has some advantages of high nitrogen, good thermal stability, and high positive formation enthalpy, etc.

摘要三氨基胍是一种非叠氮类、富氮型、可燃性化合物,其系列含能化合物具有高的正生成焓、热稳定性好、氮含量高等特点。

中文百科

标准摩尔生成焓 Standard enthalpy of formation

(重定向自Formation Enthalpy)

标准摩尔生成焓,也称标准生成焓Standard enthalpy of formation)、标准生成热Standard heat of formation),符号为 ΔfHm 或 ΔHf,单位为kJ/mol(又作kJ·mol),指在标准状态(101.3 kPa;25 ℃)下,生成1摩尔纯净物质放出(符号为负)或者吸收(符号为正)的热量。

英语百科

Standard enthalpy of formation 标准摩尔生成焓

(重定向自Formation Enthalpy)
Standard enthalpy change of formation in Born–Haber diagram for lithium fluoride.

The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the compound from its constituent elements, with all substances in their standard states at 1 atmosphere (1 atm or 101.3 kPa). Its symbol is ΔHo
f
or ΔfH. The superscript theta (zero) on this symbol indicates that the process has occurred under standard conditions at the specified temperature (usually 25 °C or 298.15 K). Standard states are as follows:

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更新时间:2025/6/21 13:56:27