State Property
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State Property
Hi, can someone explain in depth what constitutes as a state property? I have that it doesn't depend on the path in which to obtain that state, but what does that exactly mean?
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Re: State Property
Basically when calculating a state property, all you need are the final and initial values because how it got to the final value does not matter. However, you cannot do this for something that is not a state property because how they got to the final value matters (so you cannot do final minus initial).
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Re: State Property
An example of a state property is delta H, as it doesn't depend on the path to get this change, but rather the initial and final. Hope this helps!
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Re: State Property
State property is one that is only calculated by doing (final - initial), and is independent of the path taken to get to the final state. For example, say you have a reaction with high activation energy. The delta H would be the same as that same reaction, but with a catalyst, since delta H is a state property. I hope this helps!
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Re: State Property
Yes, state properties only rely on the initial and final values. It's not about how you get there, but rather how you started and where you ended.
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Re: State Property
Examples of state properties that lavelle mentions are enthalpy, temperature, volume, energy, pressure, density, and heat capacity.. work is not a state property. For state properties you just need final and initial values so you don't need the path taken to obtain the state. Lavelle uses altitude as an example, the work taken for two different paths is different, but since both paths end at the same point the final altitude is the same (work not being a state prop, altitude being one).
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Re: State Property
It's a quality that is independent of how the substance was prepared.
As an example, the state of an electric battery requires the specification of the amount of electric charge it contains.
As an example, the state of an electric battery requires the specification of the amount of electric charge it contains.
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Re: State Property
To begin, state properties are properties that can be identified through the final and initial value such as enthalpies, energy, etc. The work to achieve a final value is not considered in state properties.
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Re: State Property
State property is any property where we should subtract the final-initial value to determine the actual value of the state property. Examples would be pressure, volume, temperature and enthalpy because it does not matter what path is taken.
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Re: State Property
The 'mountain' example lavelle used in lecture really helped me understand this, showing that two people climbing a mountain could get to the same point with various paths, but in the case of state properties we don't care about those paths, just where the climbers started and ended. I recommend rewatching that part of lecture and see if it helps :)
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Re: State Property
State properties are determined by its current state meaning that they do not depend on the mean or the work hat was required to get there. It only relies on the final and initial values to determine the property.
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Re: State Property
State properties are dependent only on their given value or state at a specific moment in time. for example, delta h is a state property as it only refers to the final - initial while something like the integral of h would not be a state property as it is dependent on all points of the curve not just a specific state.
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Re: State Property
State property is used to describe a quantity that only focuses on the final and initial, without regard to the "path" taken to get to the final value.
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Re: State Property
I don't think you have to worry so much on the proper definition. I think the main point to know is that for a state property, all you need to know is the initial state and the final state to calculate the difference. Also know that delta H is a state property, meaning that enthalpy only depends on the enthalpy difference between the reactants (aka "initial state") and the products (aka "final state"), we don't need to know the exact pathway reactants took to get to products.
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Re: State Property
State properties mean that you only need to focus on the final and initial values. In this case, for enthalpy, it is a state property since enthalpy is only calculated using the initial heat and final heat values.
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Re: State Property
In a simple analogy, when you are trying to get somewhere and the Maps app on your phone tell you it is 2 kilometres away by straight line distance, but when you start navigation and find out that the actual path to go around the blocks adds up to 2.5 kilometres. The straight line distance 2km is like a state property of this trip, although you end up driving 2.5 km.
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Re: State Property
With state properties you can just do final-initial to get the change, and don't have to worry about the process used.
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Re: State Property
Enthalpy is a state property, which means that it is NOT dependent on the path taken to obtain that state. Only the initial state and the current state are taken into account, which means that enthalpy can be added and subtracted.
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Re: State Property
A state property is not dependent on the path taken to reach the state. Its value is determined by its current state.
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Re: State Property
State property is basically just referred to the property that the intermediate values don't matter, the only thing is how thing went from initial to final. Therefore, you just need the initial and final values to calculate the answer or value of the answer.
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Re: State Property
For state properties, the most important thing to account for is whether or not the property is only dependent on the final and initial state. Entropy and enthalpy are good examples of this.
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Re: State Property
With state properties the only thing that matters is the final and initial states, because the intermediate process can only happen one way.
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Re: State Property
State property only focuses on the final value and the initial value, and does not focus on the path taken to reach the state.
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Re: State Property
A state property focuses on only the initial and final values of something, disregarding the path the system took to get to that state. Examples of this are pressure, volume, and temperature.
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Re: State Property
Internal energy (U) is a state property because you'll get the same result no matter what path you take. It only matters what your initial state was and what your final state was.
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Re: State Property
Suppose I heat a system that starts at 25 degrees Celsius directly to 100 degrees Celsius. The change in temperature is 75. If I decide to heat the system from 25 to 120 and then I cool it to 100, the change is still 75. Regardless of what path I take to get the system from 25 to 100, the change will be 75. The value of the change in temperature is determined by only the initial and final states, so we can say that temperature is a state function.
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Re: State Property
A state property is a physical property of the system and is independent of how the system arrived at its present condition, meaning that only the inital and final states matter. A visual example was the hiking one in lecture - where two groups take different paths up a mountain, but in the end, they started and ended at the same place.
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Re: State Property
State properties are essentially properties where you do not need to know the intermediary steps that resulted in the final value being produced. A good example is the one that Dr. Lavelle provided in class where you're going hiking up a mountain. Let's say you're going from 5000 feet to 6000 feet. You might take a path that causes you to go up 7000 feet and then you reach your destination at 6000 feet. However, your net change was only 1000 feet. The path you took doesn't account for the overall change.
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Re: State Property
State property means that the value only relies on its final and initial values and not the path that it requires to get there. Some common ones are "SHUT" - S (entropy), H(enthalpy), U (internal energy), and T (Temperature).
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Re: State Property
I think that the only important abstraction to be gained from knowing that something is a state property, is that it's change in value is always equal to final minus initial.
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Re: State Property
A state property is a property whose value doesn't rely on the path taken to reach that value. Some examples of state properties are internal energy, pressure, temperature, volume, and altitude.
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Re: State Property
A stae function doesn't depend on the path taken, it only depends on the initial and final values.
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Re: State Property
I find the best way to think of a state property is like the example that we were given for climbing a mountain. No matter what path someone takes, when the reach the top, the altitude is the same so in that case the altitude is a state property, however, the distance traveled could be different for both and in that case distance traveled would not be a state property.
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Re: State Property
State property is a property where it doesn't matter the path it takes the final and initial values will be the same. Essentially, for a state property in order to get to a final value, there are multiple paths that it can take but the value of the final will not be indicative of the path, but rather the value at the end.
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Re: State Property
A state function is independent of the path or phase changes taken to arrive at the final destination. In other words, it only really cares about the initial and final values.
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Re: State Property
A state property does not depend on the path taken, and rather only on the initial and final values.
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Re: State Property
A state property means that the path taken does not matter. You can directly calculate the value with the initial and final values without regarding what is going on in between.
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Re: State Property
A state property does not take into account what path has been taken to get to the current condition. It only cares about the current condition.
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Re: State Property
State properties do not depend on the path/phase changes that are undergone and only rely on the initial and final values.
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Re: State Property
State properties are values that only depend on the final and initial values of that property. For instance, I live a mile from my work. If I walk straight from my house to work the change in my position will be 1 mile. If I decided one day to walk half way to work, back to my house, and then go all the way to my work, the change in my position would still be 1 mile. What happens in the middle of that mile does not matter as long as my final position is at my work and my initial position is at my house.
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Re: State Property
All you need is final and initial values, the values at other points are irrelevant when solving and they are not accounted for
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Re: State Property
It means that the path you take to get the final value does not matter. You can sum final - initial.
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Re: State Property
State properties are dependent on the final and initial values, not on the path taken.
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Re: State Property
For state properties, the only thing that is important to know are the initial and final values, so that you can find the difference by doing final-initial.
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Re: State Property
It means that you only need to know the final and initial conditions in order to measure this property.
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Re: State Property
State functions like enthalpy (H) and entropy (S) are dependent only on the overall change of some quantity (i.e on initial and final conditions), whereas path functions rely on all intermediates in addition to the initial and final quantities.
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Re: State Property
A state property is a quantity that is independent of how the substance was prepared. Examples of state properties are altitude, pressure, volume, temperature and internal energy.
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Re: State Property
State property is a quantity that is independent of how the substance was prepared. Examples of state properties are altitude, pressure, volume, temperature, and internal energy.
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Re: State Property
State property can be described as a property in which the pathway that was taken is not accounted for/does not matter. It's kind of like if you travel to two different cities, but take some extra trips along the way. The only thing that matters is the net difference between the distances of the starting and ending destinations, not the intermediate destinations.
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Re: State Property
When we say that state functions are path independent, we mean that the only important things are the initial and final values, not the values in between.
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Re: State Property
A state property focuses on only the initial and final values of something, not taking into account the path the system took to get to that state
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Re: State Property
state property simply means that the path something takes to get to a certain state or phase doesn't affect the calculation.
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Re: State Property
State properties don't depend on the path so all you need to find the change in state properties is the final and initial values.
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Re: State Property
A state property is determined by its current state and when you use them in calculations, you only need the initial and the final. It also means you can add and subtract state properties.
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Re: State Property
State properties are values determined by its current state and not its path. You can find the value if you know the initial and final values. For example, volume is a state property.
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Re: State Property
Hi!,
a state property is calculated with the final and initial values, (final-initial)
a state property is calculated with the final and initial values, (final-initial)
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Re: State Property
A state property is a quantity that is unaffected by the method of preparation. Altitude, pressure, volume, temperature, and internal energy are examples of state attributes.
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Re: State Property
A state property is a property that is not dependent on the path taken to get to that state, like you said. This means that when you are calculating the change in the property, you can just do final-initial, regardless of the path that you took to get from the initial to the final. This includes properties like enthalpy, temperature, altitude, and volume. State properties can be added or subtracted.
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Re: State Property
A state property is anything that only depends on the initial and final value. It doesn't matter how it got to the initial or final value.
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Re: State Property
State properties are completely independent of the path taken to get to the state. The only values that matter are the initial and final values.
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Re: State Property
A state property is not dependent on path taken to get from point A to point B, only the initial and final values matter.
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Re: State Property
Hi, a state property only depends on the start and final values, meaning that what is done in between is not considered.
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Re: State Property
State properties only rely on the final and initial values (and then their difference).
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Re: State Property
State properties constitute anything that remains independent of the way you reach an initial or final value. It is solely dependent on the initial and final values themselves.
Re: State Property
Hello!
When you calculate a state property you must ensure that you have your final and initial values. You should use (final-initial). The path you take to get there does not matter. I hope this helps!
When you calculate a state property you must ensure that you have your final and initial values. You should use (final-initial). The path you take to get there does not matter. I hope this helps!
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Re: State Property
To answer your question, state property refers to any property that doesn't rely on intermediate process because the process can only occur on way. Examples of properties are volume, temperature, internal energy, etc. This can be calculated by doing final value - initial value.
Re: State Property
Hi!
State property only depends on the final and initial states, the process of getting the final states does not need to be bothered. Examples like temperature and internal energy.
State property only depends on the final and initial states, the process of getting the final states does not need to be bothered. Examples like temperature and internal energy.
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