adiabatic processes
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Re: adiabatic processes
I don't think that work is necessarily always equal to 0 in an adiabatic process, but q=0 because there is no heat transferred.
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Re: adiabatic processes
An adiabatic process means that no energy is transferred as heat, meaning that q=0. This does not mean that w=0. In an abiotic process, w can =0, but it can also be another value. Textbook problem 4B.9 illustrates this idea well. Hope this helps!
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Re: adiabatic processes
I agree with the above post. Adiabatic just means there is no heat transfer between system and surroundings. So no heat is lost/gained. Only q(heat) is equal 0. For work we need to calculate to find its value. Work is only zero for isochoric (constant volume) system like bomb calorimeter
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Re: adiabatic processes
In an adiabatic process, heat is not transferred therefore q=0. However, we do not know if w=0 because work is not solely dependent on heat.
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Re: adiabatic processes
Like mentioned above, adiabatic processes are just processes where there is no heat flow (ie. q=0), but work isn't necessarily equal to zero unless there is no work of expansion/compression or we know that the change in internal energy is zero (since ΔU=q+w).
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Re: adiabatic processes
In adiabatic process occurs without transferring heat or mass between the system and its surroundings. Therefore Q is zero, with no heat gain or lost system. Unlike an isothermal process, an adiabatic process transfers energy to the surroundings only as work
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Re: adiabatic processes
It doesn't necessarily mean that w=0. We know for sure that q=0 but there can still be work being done.
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Re: adiabatic processes
In an adiabatic process q=0 but w doesn't have to equal 0. In fact, W = -deltaU because deltaU = q + w but since q = 0 then deltaU = -w, or w = -deltaU.
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Re: adiabatic processes
Hi! Adiabatic processes are when no heat is exchanged, so q = 0; w doesn't necessarily equal 0.
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Re: adiabatic processes
Hello! In an adiabatic process, it is apparent that there is no heat flow between the system and its surroundings, hence it is certain that q=0. However, it is not certain that w=0, because work is not equal to 0 unless the change in internal energy is equal to 0.
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Re: adiabatic processes
You can refer to this post where we also discuss adiabatic processes.
https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=128&t=75500&sid=facb94670fd13b8a06a541aed81a4ee3
https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=128&t=75500&sid=facb94670fd13b8a06a541aed81a4ee3
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Re: adiabatic processes
No. Adiabatic processes have no heat transfer, so q=0 and delta U=w. Since w is the energy transferred through work rather than heat, w is not affected by whether or not a process is adiabatic.
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Re: adiabatic processes
w is not necessarily 0 in an adiabatic process. q = 0 in these instances, but work can still occur. I hope this helps!
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