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When enthalpy in a system increases what is the reaction considered to be?
Wiki User
∙ 11y ago
exothermic
Wiki User
∙ 11y ago
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What is the enthalpy of a reaction?
The amount of energy that is used or released as heat in a reaction.
How can the enthalpy change be determined for a reaction in an aqueous solution?
Utilizing a thermometer to measure the temperature change of the solution can be used (along with the mass of the reactant(s)) to determine the enthalpy change for an aqueous reaction, as long as the reaction is carried out in a calorimeter or similar apparatus so that no external heat is added or removed from the system.
When graphing enthalpy and entropy what variables are included?
Temperature and energy are two of the variables included when graphing enthalpy and entropy. Enthalpy is made up of the energy, pressure, and volume of a system. Entropy is a way to determine the different ways energy can be arranged.
Enthalpy changes accompanying a change of state are than those accompanying the heating of a substance at each state?
Any change of state involve a change of the system enthalpy.
How do you determine whether a reaction is spontaneous or non spontaneous?
The first of two factors that determine whether a reaction is spontaneous or non-spontaneous is entropy. The second is energy. For a reaction to be spontaneous, it must have both of these factors.
What does the enthaply of reaction measure?
The enthalpy of reaction is the change of the system enthalpy after a chemical reaction.
What is the enthalpy of a reaction?
The amount of energy that is used or released as heat in a reaction.
What is the difference between enthalpy change and enthalpy change per mole?
Enthalpy is the energy absorbed or lost from a reaction, but enthalpy change per mole is the amount of energy lost per mole, so in order to get the overall enthalpy from the change per mole, you must multiply that value by the amount of moles used in the reaction.
What is dimension of enthalpy?
The correct dimensional formula of latent heat is MoL2T2.
How can the enthalpy change be determined for a reaction in an aqueous solution?
Utilizing a thermometer to measure the temperature change of the solution can be used (along with the mass of the reactant(s)) to determine the enthalpy change for an aqueous reaction, as long as the reaction is carried out in a calorimeter or similar apparatus so that no external heat is added or removed from the system.
How does the Gibbs free energy predict spontaneity?
It tells if the reaction will process spontaneously or not
How do you make a sentence for enthalpy?
Enthalpy is a thermodynamic property of a thermodynamic system.
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.
Why you measure enthalpy in H instead of H?
The total enthalpy of a system is called "H." That stands for "total enthalpy." It is not a measure of enthalpy. Enthalpy is measured in the SI or metric system in joules (abbreviated as J) or in customary units such as British Thermal Unit (BTU) or calories (cal).
The heat content of a system at constant pressure?
Enthalpy
What kind of energy of water increases as the water is heated by the coal?
As water is heated in a coal-fired boiler, the enthalpyof the water increases. Note that enthalpy is defined as:H = U + pVwhereH is the enthalpy of the systemU is the internal energy of the systemp is the pressure at the boundary of the system and its environmentV is the volume of the system.Also note that as a state function, enthalpy is expressed as a value relative to some reference state. For water, this is typically liquid water at the triple point, although other conventions are used such as liquid water at the normal freezing point.
What is enthalpy of fusion vaporization?
Enthalpy of fusion/vaporization is the amount of energy added to a system to melt of boil a substance or the amount of energy removed from a system to condense or freeze a substance.
