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Thermodynamic processes that occur without exchanging heat between the system and its environment.

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I need to understand a concept, which is Adiabatic expansion. I know that this process is where no heat exchange happens. Now, can i say that when an ideal gas undergoes an adiabatic expansion,then ...
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### Change of entropy in irreverisle adiabatic expansion

For an irreversible and adiabatic expansion, I understood how calculate the entropy change to the system by using hypothetical path(reversible adiabatic process and isobaric process) But, I don't ...
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### How does the state variables $(P,V)$ remain constant for a system with adiabatic wall

I have been very confused regarding how my physics textbook differentiates b/w an adiabatic wall and a diathermic wall. The term ‘equilibrium’ in thermodynamics appears in a different context : we ...
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### Adiabatic Quantum Computing: why not just set the system in its problem Hamiltonian $H_{P}$ immediately?

Background: In any adiabatic quantum computer (AQC) algorithm, we solve problems in the following manner: We have an initial Hamiltonian, $H_{0}$, whose ground state is easy to find, and a problem ...
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### Ground states being superposition states in adiabatic quantum computation

In Adiabatic Quantum Computing, a Hamiltonian $H$ is evolved for time $T$ according to $$H(t) = (1-t/T)H_{0} + (t/T)H_{P}$$ where $H_{0}$ is an initial Hamiltonian, and the ground state of $H_{P}$ ...
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### Is it possible to increase the temperature of an ideal gas in an adiabatic sealed container with a frictionless piston for a lid?

As far as I understand it, if I pumped the piston repeatedly, compressing the gas, the temperature would go up for a second, but the minute I released the piston the higher pressure inside the ...
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### Is reversible adiabatic process possible?

Is it possible to have reversible adiabatic process in practical? because if it is a reversible process than we allowing it to exchange heat with surroundings. If it is in insulation than either we ...
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### Phase-shifting of instantaneous eigenstates in the adiabatic approximation

In my book Quantum Mechanics by B.H. Bransden and C.J. Joachain, there is a chapter on the adiabatic approximation. Here, the authors assume that the time-dependent Hamiltonian $\hat{H}(t)$ changes ...
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### Work done in adiabatic process

When we try to establish a relation between the pressure and temperature in adiabatic process we come across a equation.. $dU = dq - PdV$ $dq=0$ (Adiabatic process) and, $dU=C_v.dT$ (Heat capacity ...
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### Understanding why $\int_{T_1}^{T_2}C_Vd\ln(T) + \int_{V_1}^{V_2} nRd\ln(V) = 0$ is violated when $T_2$ and $V_2$ are picked

In Chapter 4 of Chemical Thermodynamics, by Peter A. Rock published by Oxford University Press, 1983, the author is trying to explain why a new state function is needed, specifically a state function ...
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### How much heat it needs to be applyed to water to boil? [closed]

There is a mass of $2kg$of water, it needs to be boiled, then how much energy needs to be supplied? Mass of water $2 kg$ Initial temperature $20 C$ Final temperature $94 C$ $C_p$ $4.186\frac{KJ}{kgC}$...
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### Why is $C_{V}$ allowed in this equation $\Delta E_{int} = nC_{V}\Delta T$ for an adiabatic process?

Since in an adiabatic process volume and pressure are changing I don't get how it's valid to use $C_{V}$ since that's the molar specific heat at constant volume. I must be missing something. Thanks!
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### Difference between reversible and irreversible adiabatic process in PV diagram

let's say we've got a carnot-cycle in a pressure volume diagram with the following processes: 1 -> 2: reversible isothermal 2 -> 3: reversible adiabatic 3 -> 4: reversible isothermal 4 -> 1: ...
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### Adiabatic theorem - quantum mechanics and thermodynamics [duplicate]

A diabatic process is defined as follows: Rapidly changing conditions prevent the system from adapting its configuration during the process, hence the spatial probability density remains unchanged. ...
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### Entropy for irreversible adiabatic process

For an adiabatic process we know $dQ=0$. So the entropy change should also be zero. Please explain how can we calculate the entropy change.
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### Is the adiabatic theorem in Quantum mechanics valid in general for Non-Hermitian Hamiltonians?

Is the adiabatic theorem in Quantum mechanics valid in general for Non-Hermitian Hamiltonians? The proofs I have come across for adiabatic theorem all assume at some point in the proof that the ...
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### Derivation of $(\partial S/\partial X)_{E}+(\partial S/\partial E)_{X}f=0$ in Chandler's Statistical mechanics book

I am having trouble understanding something very introductory in Chandler's statistical mechanics book regarding the derivation of $(\partial S/\partial X)_{E}+(\partial S/\partial E)_{X}f=0$ The ...
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### V versus P in an Adiabatic Process

I have a question in which a gas undergoes a an expansion in such a way that the Pressure is a linear function of the volume on a V versus P diagram. One of the professors I asked said that means an ...
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### Change in temperature during adiabatic increase of pressure

Let us consider a system with a certain volume $V$ and at a particular temperature $T_0$. Suppose further that the pressure is increased adiabatically from $P_0$ to $P_1$. I want to be able to ...
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### Does internal energy U always depend on temperature T?

One thermodynamic identity is $\mathrm dU=T~\mathrm dS-p~\mathrm dV + (\mu~\mathrm dN+\ldots)$. For a system of ferroelectric particles, which exhibit electric polarisation $P$ when exposed ...
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### Can the average temperature increase in a closed adiabatic (isolated) system?

Assume a closed and adiabatic (isolated) system (no energy or mass transfer at the boundaries) then is it possible for the average temperature to change (increase or decrease)? Corollary: 1. If yes ...
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### Simplest Live Demonstration of Adiabatic Transport

I have to give a presentation on Berry phase. I would like to give the simplest live demonstration of adiabatic transport. If I move an object in a loop and return that object back into its original ...