焓
1、物理学名词,表征物体吸收的热量(在等压过程中) 为一个体系的内能与体系的体积和外界施加于体系的压强的乘积之和。
我可以测量它并制成表格,当我转动dT旋钮,我就知道焓的变化了。
Something I can measure and I can tabulate, and when I turn my dT knob, I know what's going to happen to the enthalpy.
讨论了气态摩尔标准生成焓与取代基常数间的线性关系。
The linear relationship between the gas phase standard enthalpies of formation and the substituent constants is discussed.
还讨论了尺寸因子,电负性,选择子的轨道能量等因素对形成焓的影响。
The affection on the enthalpies of formation aroused by factors, such as size factor, electronegativity, the energy of orbit of selectron etc, is also discussed.
系统已经处于自由焓最低的状态。
It's already in the lowest enthalpy state.
我们能计算混合物的焓。
We can calculate our enthalpy of mixing.
所以不会有混合物的焓。
So there's no enthalpy of mixing.
这就是由定义焓得到的。
That's by definition of enthalpy.
是一个焓不变的过程,这个量我们可以做实验。
It's the constant enthalpy process that we're looking at. This we can do experiments on.
所以从根本上说,这个过程中,焓没有任何作用。
So basically, in this process that I described, the enthalpy's not doing anything.
通常所说的能量,或者自由焓和熵之间存在一个平衡。
There's a balance here between ordinary energy or enthalpy and entropy.
对溶剂效应和焓-熵补偿作用进行了讨论。
The solvent effects, the compensation of the activation enthalpy, and the activation entropy were discussed.
自由能,熵,以及焓。
Free Energy, Enthalpy, and Entropy.
它是有用的注意,停滞焓是不断在整个流在喷嘴。
It is useful to note that the stagnation enthalpy is constant throughout the flow in the nozzle.
而亨利定律常数告诉我们相互作用的焓,是有利,还是不利。
And Henry's law constant is going to tell you whether or not that enthalpy of interaction is favorable or not favorable.
这个方程把吉布斯自由能中的温度变化,和焓的变化联系起来。
And it relates the temperature change in the Gibbs free energy with the enthalpy change.
在此软件包的基础之上绘制了水和水蒸汽的焓火用图。
With help of this package, the enthalpy - exergy diagram of water and steam is drawn.
如果你看元素周期表,你会在这一侧发现,这是原子化焓。
Anyway, if you go to your Periodic Table you will find that on the one side you can get what is called the enthalpy of atomization.
但是如果系统处于平衡态,所有其他的态都不可能具有更低的自由焓。
But if the system is in equilibrium, none of those states has lower enthalpy.
研究空气冷却过程,当有湿交换时,必须要测量空气的焓差。
In studying air-cooling process with humidification or dehumidification, it is necessary to measure the enthalpy difference of air before and after the air - cooler.
的热容,熵,升华焓等热力学函数,并与实验值进行了比较。
The standard heat capacity, entropy, sublimation enthalpy of graphite.
定性地预计了113号元素在上述表面上的释放行为和吸附焓。
The release behaviour and the adsorption enthalpies of element 113 on these surfaces are estimated qualitatively.
而在乙醇中,同样的吸附会有较高的吸附焓,与水中的情况相似。
On the other hand, the enthalpy of same adsorption from ethanol is higher, which is similar to that from water.
当电流一定时,电压的提高意味着电弧焓值的提高和切割能力的提高。
When the current, voltage must be improved means that the improvement of arc enthalpy and cutting capability is improved.
我们同样可以看到如果保持自由焓,和压强不变熵的变化dS也是大于零的。
H We also saw that dS for constant H and p was greater than zero.
我们将零点定义为每种元素,在室温和正常大气压下,在其自然状态下的焓。
What we define as zero is the enthalpy of every element in its natural state at room temperature and ambient pressure.
焓变涂料激冷作用的大小,取决于基料物质比焓变的大小以及涂层厚度等因素。
The chill effect is found to depends upon the enthalpy change of the base materials and coating depth.
焓变涂料激冷作用的大小,取决于基料物质比焓变的大小以及涂层厚度等因素。
The chill effect is found to depends upon the enthalpy change of the base materials and coating depth.