Thermodynamics Forum

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Undergrad Can we consider this system as an Einstein model of a Solid?

  • Ted Ali
  • · Replies 1 ·
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1

Graduate Question about the 0th law of thermodynamics

  • QuasarBoy543298
  • · Replies 3 ·
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3

Graduate Calculating Initial Potential and Heat of Metal Spheres Collision

  • Salah93
  • · Replies 1 ·
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1

Graduate Light Reflection Momentum - P=2Icos^2(A)/C

  • Neeraj
  • · Replies 7 ·
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7

Graduate Is a single atom hot? Will it emit radiation?

  • SamRoss
  • · Replies 6 ·
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6

Graduate How can I mix gases in a chamber measuring only pressure and temperature

  • electr0dave
  • · Replies 5 ·
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5

High School Atmospheric Burn-up During Re-Entry

  • Rensslin
  • · Replies 69 ·
3
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Graduate Atmospheric CO2 absorption - actual quantification?

  • cmb
  • · Replies 42 ·
2
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42

Undergrad Why is a two-layered design recommended for heat insulation experiments?

  • DDesulgon
  • · Replies 5 ·
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5

Undergrad How do atoms affect thermodynamics?

  • lucas_
  • · Replies 3 ·
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3

Graduate Why doesn't the atom absorb heat energy when it is low?

  • thaiqi
  • · Replies 76 ·
3
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Graduate One way vibrational energy transfer

  • vin300
  • · Replies 1 ·
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1

Graduate Tricky heat calculation from the 1850s

  • Camomille
  • · Replies 4 ·
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4

Graduate The association of degrees of freedom with temperature

  • JohnnyGui
  • · Replies 17 ·
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17

Graduate Molar specific heat capacity for constant volume.

  • Nikhil Rajagopalan
  • · Replies 2 ·
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2

Undergrad How Do You Calculate Initial Pressure and Final Volume in Adiabatic Expansion?

  • JeffEvarts
  • · Replies 7 ·
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7

Undergrad Relation between temperature and average translational kinetic energy.

  • Nikhil Rajagopalan
  • · Replies 2 ·
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2

Graduate Heat capacity vs Thermal conductivity in a LN2 bath

  • tempneff
  • · Replies 26 ·
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26

Undergrad What is the equation to calculate the temperature

  • wishstar
  • · Replies 3 ·
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3

Undergrad Change in Entropy of a Solid or Liquid

  • Philip Koeck
  • · Replies 4 ·
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4

Graduate Can gas kinetic theory explain heat transfer from gas to a container?

  • cmb
  • · Replies 6 ·
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6

Graduate How to find the volume change of CO2 when compressed into liquid?

  • thejus
  • · Replies 2 ·
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2

High School How can we get clothes out of a vacuum chamber without condensing water on them?

  • stevendaryl
  • · Replies 114 ·
4
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114

Undergrad Can windows frost over in space?

  • CookieSalesman
  • · Replies 8 ·
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8

Undergrad Can someone please debunk this claim that CO2 does not trap heat?

  • Darkmisc
  • · Replies 2 ·
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2

Undergrad KT in systems other than ideal gas

  • DaTario
  • · Replies 8 ·
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8

Undergrad Non-Condensables In Refrigeration System

  • Saturatedpsi
  • · Replies 1 ·
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1

Graduate What Thermodynamics and Entropy Means

  • jambaugh
  • · Replies 1 ·
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1

Undergrad Understanding q: Why does dqsurr = -dqsys?

  • santimirandarp
  • · Replies 15 ·
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15

Undergrad Thermocouples, seeback effect, fermi energies

  • wickedsingh
  • · Replies 1 ·
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1

Graduate Isothermal expansion of a gas: heat of surroundings

  • santimirandarp
  • · Replies 10 ·
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10

Undergrad Gas Law - increasing temperature with constant volume held

  • wee VooDoo
  • · Replies 23 ·
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23

Undergrad Is there a limit to how hot something can get, and if so why?

  • a_martin1423
  • · Replies 10 ·
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10

Graduate Why are action and entropy unrelated?

  • Suekdccia
  • · Replies 2 ·
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2

Undergrad Melting time vs Temperature and Mass

  • h1a8
  • · Replies 5 ·
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5

Graduate The Confusion of Weight and Mass in Physics Education

  • Doug1943
  • · Replies 17 ·
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17

Graduate What property of air makes it compressible?

  • Bad Hair Day
  • · Replies 6 ·
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6

Graduate Heating phenomenon in a nozzle

  • ajd12
  • · Replies 1 ·
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1

Graduate Cooling air by running it through underground pipes

  • Sultan of Hel
  • · Replies 1 ·
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1

Undergrad Thermodynamics & PV work relationships

  • speny83
  • · Replies 1 ·
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1

Undergrad Can Bubbling Air Through Water Control Relative Humidity and Temperature?

  • Thorny
  • · Replies 1 ·
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1

Graduate Is Entropy in Non-Scientific Contexts Subjective?

  • DaveC426913
  • · Replies 2 ·
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2

Undergrad Heat Energy Intercepted by the Earth

  • Dinoduck94
  • · Replies 23 ·
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23

Graduate If entropy were reversed, would time be reversed?

  • TheQuestionGuy14
  • · Replies 2 ·
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2

Undergrad How can a blackbody get hotter?

  • UMath1
  • · Replies 18 ·
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18

Undergrad Why isentropic mass is taken for calculation of area of nozzels

  • engnr_arsalan
  • · Replies 1 ·
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1

Undergrad Calculating pressur produced by explosion

  • grendizer1
  • · Replies 1 ·
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1

Graduate Understanding Entropy: From Thermodynamics to Transport Equations

  • shonen
  • · Replies 1 ·
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1

Undergrad Modelling Evaporation of a Liquid

  • OKeeffe
  • · Replies 1 ·
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1

Graduate Reversible/Irreversible Compression/Dilatation

  • Luscinia
  • · Replies 1 ·
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1

Graduate Free (mostly) Expansion of an Ideal Gas

  • Slader99
  • · Replies 1 ·
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1

Undergrad Saturated Steam - Conceptual Question

  • vector2
  • · Replies 1 ·
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1

Undergrad InFinding heat transfer coefficient experimentally

  • DinoRF
  • · Replies 1 ·
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1

Undergrad Constant calorific value problem

  • pomocnik89
  • · Replies 1 ·
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1

Graduate Thermodynamics - reversibility and heat addition

  • Haftred
  • · Replies 1 ·
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1

Graduate Can Two Points on a PV Curve Represent the Same State in Thermodynamics?

  • initiator
  • · Replies 1 ·
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1

Graduate Definition of specific heat by via entropy

  • mSSM
  • · Replies 1 ·
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1

Graduate Heat conduction in gravity field without convection

  • lukas.suess
  • · Replies 1 ·
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1

Undergrad Why is a drinking bird colder than the ambient temperature?

  • DDesulgon
  • · Replies 1 ·
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1

High School Understanding the Stefan-Boltzmann Law (when the surroundings are hotter)

  • JC2000
  • · Replies 3 ·
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3

Graduate Entropy Equatio for a closed system

  • Crazy Tosser
  • · Replies 1 ·
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1

Graduate What is the temperature calculation for soldering pins onto PCB edge pads?

  • kamath_u
  • · Replies 1 ·
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1

Undergrad LNG: Is 300 Pounds of LNG = 55,500 BTU's?

  • sshim35563
  • · Replies 1 ·
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1

Graduate Calculating Final Pressure in Isochoric Thermo Process

  • s7b
  • · Replies 1 ·
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1

Undergrad Evaporarive cooling. How to calculate the cooling of the air?

  • hacillunation
  • · Replies 1 ·
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1

Undergrad Simultaneous heating and cooling

  • fishspawned
  • · Replies 3 ·
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3

High School Can we use temperature differences for power generation?

  • tomcps
  • · Replies 12 ·
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12

Undergrad Adiabatic irreversible process vs adiabatic reversible

  • cianfa72
  • · Replies 1 ·
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1

Graduate In thermodynamics, when do you include work by external forces?

  • seang
  • · Replies 1 ·
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1

Graduate Work and Heat in Gas Cycle (formatted: may load slowly)

  • as11
  • · Replies 1 ·
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1

Undergrad What Determines the Maximum Number of Microstates at Equilibrium?

  • I_laff
  • · Replies 4 ·
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4

Undergrad Specific heat of certain hard water(hardness measured with gpg)

  • ryancheeseman
  • · Replies 1 ·
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1

Undergrad Conversion confusion: Rankine in ideal gas constant

  • Undoubtedly0
  • · Replies 1 ·
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1

Graduate What Are Some Empirical Models for Calculating Activity Coefficients?

  • siddharth
  • · Replies 1 ·
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1

Undergrad How much does air volume change with temperature?

  • gary350
  • · Replies 19 ·
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19

Undergrad Understanding a simple statement regarding the measurement of temperature

  • JC2000
  • · Replies 3 ·
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3

Undergrad Joule-Thomson Effect: Explaining Qualitatively

  • Chemmjr18
  • · Replies 17 ·
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17

Graduate Can Anisotropic Materials Have Asymmetric Thermal Conductivity Tensors?

  • dRic2
  • · Replies 14 ·
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14

Graduate Point source with Dirichlet Boundary

  • Bruce
  • · Replies 3 ·
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3

Graduate Thermo: Calculating the temperature drop from gas leaving a system

  • Magellanic
  • · Replies 11 ·
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11

Graduate Can the isothermal expansion of an ideal gas be irreversible?

  • Philip Koeck
  • · Replies 5 ·
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5

Graduate Definition of Heat and the First Law of Thermodynamics (discrepancy?)

  • JC2000
  • · Replies 5 ·
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5

Undergrad Boltzmann Distribution and microstate probabilities

  • I_laff
  • · Replies 2 ·
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2

Graduate Decompression of dry air in relation to temperature

  • CyanPhysics
  • · Replies 3 ·
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3

Undergrad How does radiation become heat?

  • iamconfused
  • · Replies 20 ·
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20

Undergrad Is Newton's First Law a conservation law?

  • Jehannum
  • · Replies 6 ·
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6

Graduate Review of modern non-equilibrium thermodynamics theories

  • SVN
  • · Replies 2 ·
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2

Undergrad Thermodynamics and ideal gas law concepts

  • ryley
  • · Replies 14 ·
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14

Undergrad The second law of thermodynamics -- What does "from cold to hot" mean?

  • QuasarBoy543298
  • · Replies 8 ·
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8

Undergrad Two or three types of heat transfer?

  • seb7
  • · Replies 10 ·
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10

Graduate Calculating theoretical heating rate of sand

  • Bacat
  • · Replies 1 ·
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1

Graduate How Do You Calculate the Temperature Rise of a Bimetallic Strip in an MCB?

  • physiomaniac
  • · Replies 1 ·
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1

Undergrad Combining two thermal conductivity (k) values

  • Point Conception
  • · Replies 1 ·
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1

Graduate Standard Heat of Formation of Uranium Compounds

  • tzeng89
  • · Replies 1 ·
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1

Undergrad Specific heat lab question

  • emperrotta
  • · Replies 1 ·
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1

Undergrad Does plain glass reflect infrared radiation?

  • charles65
  • · Replies 3 ·
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3

Undergrad Why is T''(x) Zero in the Steady State Solution of the Heat Equation?

  • wumple
  • · Replies 1 ·
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1

Graduate Isobaric Process finding G using (deltaG-deltaGo)

  • mikece
  • · Replies 1 ·
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1

Graduate Heat capaticy of isobaric process with real gas

  • lakmus
  • · Replies 1 ·
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1

Graduate Internal entropy change for nonquasistatic process

  • connor415
  • · Replies 1 ·
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1