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Enthalpy is the amount of energy in a system and when this changes (when a reaction happens), the energy is either released (exothermic) or absorbed (endothermic) and this energy is usually released or absorbed as heat. Therefore when the enthalpy decreases, heat is released from the system making it exothermic. In contrast, when the enthalpy increases, heat is absorbed making it endothermic.
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JordanEnthalpy of water (100% liquid, 0% steam) has a direct relation with pressure and temperature
Enthalpy of vaporisation (mixture of liquid and steam) has an inverse relation with pressure and temperature
Enthalpy of steam (100% steam, 0% liquid) at saturation has a direct relation with pressure and temperature
Enthalpy of super-heated steam (steam at a temperature above its saturation temperature) has a direct relation with temperature and an inverse relation with pressure
enthalpy is a diffrence of reducing temperature. and temperature is a hotness or coldness of a product or a area.
The above answer can be re-state as:
Enthalpy is a measure of the total energy inside a thermodynamic system. (emphasize on thermodynamic because enthalpy and temperature in classical way are not defined beyond chemical equilibrium). There are actually two types of enthalpy but people don't usually make a difference: formation enthalpy and sensbile enthalpy. Sensible enthalpy is the one related to temperature. Sensible enthalpy is the energy change in the system as the temperature of the system is modified. Mathematically is expressed in terms of specific heat at p=const and temperature i.e.: h=cp*T (for calorically perfect gas only). The formation enthalpy is a different story has to do with the chemical energy of the molecule (sometimes this is also called heat of formation). Hope this helps!
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What is the relationship between temperature and voltage amplification Theory and Mathematical Information?
With higher temperature, low voltage
Why you calculate enthapy?
Generally enthalpy is analgous to the energy of a material at a particular temperature and pressure. It is calculated to determine the energy a material holds, or more often, enthalpy differences are calculated to determine how much energy is required to bring a material from one temperature and pressure to another temperature and pressure.
What is the Enthalpy of 17-4 PH stainless steel?
The enthalpy of 17-4 PH stainless steel, like other materials, is not a fixed value and can vary depending on the temperature and phase of the material. Typically, the specific heat capacity for stainless steels is around 500 J/kg·K, which can be used in conjunction with temperature change to estimate enthalpy changes. For precise enthalpy values, reference to material property databases or specific experimental data is necessary.
What is the relationship between resistance and temperature?
• ntc 'negative temperature coefficient': its resistance decreases as the temperature increases• ptc 'positive temperature coefficient': its resistance increases as the temperature increases
Is the heat content of a system at a constant pressure?
Yes it is possible, for example when water freezes there is a point when the temperature remains constant however energy is released as the water condenses.
