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Question 1

-4votes

0answers

79views

The cat thought experiment [duplicate]

This thought experiment was made with the purpose of trying to understand whether the ideal gas law holds in relativistic frames.Suppose you have two observers, a box that is perfectly insulative and ...

Benjamin Mushinge

7

askedyesterday

Question 2

2votes

0answers

75views

Operations with the hard sphere potential

In statistical mechanics (in particular I'm interested in applying the Landau Kinetic Equation to a hard spheres gas), it is often useful to get the gradient or the Fourier transform of the ...

Murilo Porfirio

39

askedyesterday

Question 3

16votes

4answers

2kviews

Condensation of water droplets on one side of a bottle!

Here is what I observed:Background:I kept this bottle in my room, at a place where:half of it was in complete darkness (well, minimal light did fall on it, but very minimal).the other half ...

Lifeispeaceful

161

asked2 days ago

Question 4

0votes

0answers

28views

Am I correct in my understanding of how the reverse Carnot Cycle works? [duplicate]

So, when the gas (initially at the heater temperature T1) is compressed isothermally, it does not come into contact with the cooler, and in order to prevent the gas temperature from exceeding the ...

Marmajuck

39

askedNov 26 at 5:03

Question 5

1vote

2answers

159views

Why the reverse Carnot Cycle works?

I don't understand why the reverse Carnot Cycle works. Let's consider the isothermal expansion of a gas (body). The gas does work, but its temperature remains constant. For this to happen, the gas ...

Marmajuck

39

askedNov 25 at 15:05

Question 6

2votes

2answers

190views

Callen's Thermodynamics - how can equilibrium states be specified by internal energy?

I am currently reflecting a bit on the formal structure of the theory presented in Callen's classic text Thermodynamics and an Introduction to Thermostatistics. I was originally going to post a more ...

Anna

1,253

askedNov 25 at 0:58

Question 7

-5votes

0answers

50views

Thermal physics [closed]

A student attempts to study a temperature of absolute zero by using a constant volume gas thermometer. According to his experience the pressure of triple point of water was 4.0010⁴ N/M² and the normal ...

NeOkiMe Okindo

1

askedNov 23 at 19:54

Question 8

-10votes

0answers

51views

1.With neat sketch, explain the Joules’ experiment 2.What are the drawbacks of first law of thermodynamics [closed]

1.With neat sketch, explain the Joules’ experiment2.What are the drawbacks of first law of thermodynamics

Muhire Faustin

1

askedNov 23 at 19:50

Question 9

5votes

4answers

171views

Temperature of flowing water

Water's temperature is given by (average K.E. of molecules) $=3/2 \ k_{B}T$, so my intuition is that flowing water molecules will gain additional kinetic energy from flowing, leading to a huge ...

Owlywolf

507

askedNov 22 at 13:03

Question 10

-3votes

3answers

287views

Why Can't We Simplify the Ideal Gas Law to $pV = nT$?

As someone with a small background in physics, I find myself questioning the necessity of the ideal gas constant $R$ in the Ideal Gas Law $pV = nRT.$ Why can’t we simplify this relationship to $pV =nT$...

Marvin_Tur

97

askedNov 21 at 14:35

Question 11

-9votes

0answers

48views

Sobre el efecto Mpemba: interpretación y dudas físicas [closed]

Título:Sobre el efecto Mpemba: interpretación y dudas físicasCuerpo del post:Hola, mi nombre es ArAgON.Estuve viendo sobre la teoría Mpemba, donde bajo ciertas condiciones el agua caliente se ...

ArAgON

1

askedNov 21 at 0:24

Question 12

25votes

3answers

3kviews

Why do metals burn you when they've been left outside in direct sunlight?

We all know from every day experience that if you touch metal that's been left outside in direct sunlight, it'll burn you. Why is that?I've read that it's related to the specific heat capacity and/or ...

yellowguardling45

453

askedNov 20 at 4:40

Question 13

0votes

0answers

42views

Does dissipation have different gravitational entropy effects depending on which mass dissipates in a bound system?

Consider a bound two-body system ($M>>m$) such as Earth–Moon. I'm trying to understand whether there's a meaningful asymmetry in how identical dissipation processes affect gravitational entropy ...

Apsteronaldo

111

askedNov 18 at 19:28

Question 14

1vote

3answers

142views

Callen's thermodynamics - is it possible for the state of maximum entropy to lie on unphysical thermodynamic coordinates?

I have a question regarding the second edition of Callen's Thermodynamics and an Introduction to Thermostatistics, which regards his third postulate:Postulate III. [...] The entropy is continuous ...

Anna

1,253

askedNov 16 at 12:53

Question 15

0votes

0answers

44views

Maxwell-Juttner distribution and its derivation

I am looking for good notes on the Maxwell-Juttner distribution and its derivation. I stumbled across this post Calculation of Maxwell-Juttner distribution integral but I was unable to find reference ...

Rinzler

9

askedNov 16 at 9:45

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Stack Exchange Network

Questions tagged [thermodynamics]

The cat thought experiment [duplicate]

Operations with the hard sphere potential

Condensation of water droplets on one side of a bottle!

Am I correct in my understanding of how the reverse Carnot Cycle works? [duplicate]

Why the reverse Carnot Cycle works?

Callen's Thermodynamics - how can equilibrium states be specified by internal energy?

Thermal physics [closed]

1.With neat sketch, explain the Joules’ experiment 2.What are the drawbacks of first law of thermodynamics [closed]

Temperature of flowing water

Why Can't We Simplify the Ideal Gas Law to $pV = nT$?

Sobre el efecto Mpemba: interpretación y dudas físicas [closed]

Why do metals burn you when they've been left outside in direct sunlight?

Does dissipation have different gravitational entropy effects depending on which mass dissipates in a bound system?

Callen's thermodynamics - is it possible for the state of maximum entropy to lie on unphysical thermodynamic coordinates?

Maxwell-Juttner distribution and its derivation

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