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What is the relationship between enthalpy and temperature?
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.
Is enthalpy a state function?
Yes it is state function
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.
Internal energy and enthalpy how differ and relate to each other?
Enthalpy mathematically is the sum of the internal energy and work done in a process.internal energy is the sum of the kinetic energy,potential energy,vibrational energies etc
How do you read pressure enthalpy chart?
by smoking 3 oz of crack and then u will understand it
What is the significance of isothermal enthalpy in chemical reactions?
The significance of isothermal enthalpy in chemical reactions lies in its ability to measure the heat energy exchanged during a reaction that occurs at a constant temperature. This helps in understanding the energy changes involved in the reaction and predicting its feasibility and direction.
Is enthalpy of fusion a chemical property?
Enthalpy of fusion is a physical property, not a chemical property. It represents the amount of heat energy required to change a substance from a solid to a liquid state at its melting point.
Does physical adsorption have a low adsorption enthalpy?
Yes, physical adsorption typically has a low adsorption enthalpy due to weak van der Waals forces between the adsorbate and adsorbent. These interactions are reversible and non-specific, leading to lower enthalpies compared to chemical adsorption.
What is significance of Hall coefficient?
physical significance of hall coefficient
What is the Physical significance of z transform?
t is the significance of Z-transform
How do you calculate the enthalpy change of a reaction?
To calculate the enthalpy change of a reaction, subtract the total enthalpy of the reactants from the total enthalpy of the products. This difference represents the enthalpy change of the reaction.
What do the symbols mean Delta Hr Hf Hc Hn Ha in chemistry btw i know theyre enthalpy changes?
delta Hr is the enthalphy change of a reaction delta Hf is the enthalpy of formation where one mole of a substance is formed ( generally in its naturally occurring physical state) delta Hc is the enthalpy of combustion where one mole of a substance in its standard state undergoes combustion delta Hn is the enthalpy of neutralization where one mole of H+ reacts with OH- to form one mole of H2O delta Ha is the enthalpy of atomization where a molecule splits to form its neutral atomic components
What does the enthalpy vs temperature graph reveal about the relationship between enthalpy and temperature?
The enthalpy vs temperature graph shows how enthalpy changes with temperature. It reveals that as temperature increases, enthalpy also tends to increase. This indicates a positive relationship between enthalpy and temperature.
What is the relationship between the change in enthalpy (H), specific heat capacity (Cp), and the change in temperature (T) in a chemical reaction or physical process?
The relationship between the change in enthalpy (H), specific heat capacity (Cp), and the change in temperature (T) in a chemical reaction or physical process is described by the equation H Cp T. This equation shows that the change in enthalpy is directly proportional to the specific heat capacity and the change in temperature.
What is the difference of enthalpy of formation and the enthalpy of combustion?
Enthalpy of combusion is energy change when reacting with oxygen. Enthalpy of formation is energy change when forming a compound. But some enthalpies can be equal.ex-Combusion of H2 and formation of H2O is equal
What are pyhsical and chemical properties?
Physical properties: density, mass, hardnee, resistivityChemical properties: flammability, electronegativity, corrosivity, enthalpy of combustion
What is the significance of high hydration enthalpy?
Enthalpy of hydration is the energy change for converting 1 mol of an anhydrous substance to 1 mol of the hydrated substance. More the hydration enthalpy more will be the energy released on getting hydrated. The stability of any species is inversely proportional to the energy content and any chemical species tends to becoming more and more stable. Thus having high hydration enthalpy means it will become more stable on hydration and thus it will tend to forming its hydrate.
