Thermodynamics Forum

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High School Why does releasing compressed gas cause the container to cool down?

  • masscal
  • · Replies 25 ·
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25

Graduate Entropy, chemical potential, temperature

  • aaaa202
  • · Replies 2 ·
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2

Undergrad Thermodynamics? number crunching thermal conductivity

  • fastline
  • · Replies 3 ·
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3

Graduate [Thermodynamics] Is this even possible?

  • Farina
  • · Replies 1 ·
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1

Graduate Why does ITC measure Enthelpy, not Gibbs Energy?

  • jjoonathan
  • · Replies 1 ·
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1

Undergrad I thought enthelpy meant total internal energy?

  • kq6up
  • · Replies 7 ·
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7

Graduate Something that should be extremely simple - Blackbody Curve

  • Xyius
  • · Replies 7 ·
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7

Graduate Understanding the Minimum Energy Principle in Thermodynamics

  • aaaa202
  • · Replies 7 ·
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7

Undergrad Surface tension dependence on temperature

  • deb2014
  • · Replies 4 ·
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4

Undergrad Iso-this, Iso-that - how the PV diagram should look

  • gfd43tg
  • · Replies 2 ·
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2

Undergrad Does Heat Transfer Always Lead to a Decrease in Temperature?

  • Bashyboy
  • · Replies 5 ·
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5

High School Does a Hairdryer blow harder with heat

  • Jedi_Sawyer
  • · Replies 59 ·
2
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59

High School What is the relationship between temperature and pressure in gas laws?

  • Ryder S
  • · Replies 5 ·
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5

Undergrad Does exposure to radiation continue emitting rays?

  • randomi
  • · Replies 7 ·
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7

Undergrad Equipartition Theorem Degrees of Freedom

  • Bashyboy
  • · Replies 5 ·
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5

Undergrad Could your pet parrot's energy power your house for 292,879 years?

  • RagingPineapple
  • · Replies 3 ·
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3

Undergrad First law of thermodynamics of gas

  • PFuser1232
  • · Replies 5 ·
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5

Graduate Question on Boltzman statistics and numbering of states

  • Sonderval
  • · Replies 9 ·
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9

Graduate Absorption of radiation from a 'cooler' source

  • Arfur Bryant
  • · Replies 39 ·
2
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39

Undergrad Understanding Wien's Law: Power Radiated & Wavelength

  • PsychonautQQ
  • · Replies 5 ·
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5

Graduate What is translational entropy?

  • blaisem
  • · Replies 4 ·
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4

Graduate Relationship Between Kinetic Energy and Temperature

  • Bashyboy
  • · Replies 1 ·
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1

Undergrad KW and kWh - further explanation

  • danny.mcshane
  • · Replies 12 ·
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12

Undergrad Thermodynamics - dependence of molar fraction on temperature

  • sari
  • · Replies 1 ·
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1

Undergrad Conceptual problem on Newton's Third Law

  • Conservation
  • · Replies 9 ·
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9

Undergrad Black garment vs white garment .

  • marcos1340
  • · Replies 13 ·
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13

Graduate Understanding Nitrogen Compression: Implications on Pressure Vessel Design

  • Rezo
  • · Replies 2 ·
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2

Graduate Entropy for Reversible and Irreversible Processes

  • Zag
  • · Replies 5 ·
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5

Graduate Unraveling the Temperature-Hall Voltage Relationship

  • leroyjenkens
  • · Replies 2 ·
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2

Undergrad Simple Method to Measure Thermal Conductivity of Insulation

  • baha
  • · Replies 4 ·
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4

Graduate Is entropy a measure of disorder ?

  • Aidyan
  • · Replies 5 ·
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5

Graduate Problem with energy in a cycle

  • Gh778
  • · Replies 8 ·
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8

Undergrad Will temperature of gas increase or decrease, from the formula PV=nRT?

  • lord1412
  • · Replies 11 ·
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11

Undergrad Heat Generated due to Spinning Disc

  • deadstar33
  • · Replies 7 ·
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7

Graduate Equations of state = superfluous state variables?

  • AcidRainLiTE
  • · Replies 1 ·
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1

Graduate Dulong Petit derivation.How do we get this formula?E=kT

  • Outrageous
  • · Replies 3 ·
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3

Undergrad Does a Fan On a Wood/Coal Stove Produce More Heat or Just Dispurse It?

  • tony17112acst
  • · Replies 24 ·
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24

Graduate Edison effect for Incandescent Bulb?

  • wang0073
  • · Replies 3 ·
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3

Graduate Pulsar radiation at quantum level

  • Yashbhatt
  • · Replies 2 ·
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2

Undergrad How much warmer is 10 degree Celsius than 5 degrees Celsius?

  • MikeDobbs
  • · Replies 20 ·
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20

Undergrad Heat Loss and Energy Remaining Between Two Identical Materials

  • spl3001
  • · Replies 13 ·
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13

Graduate Overunity from Heating and Cooling

  • etherist
  • · Replies 7 ·
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7

Undergrad Relationship between Velocity, Kinetic Energy, and Heat

  • Awilson012
  • · Replies 10 ·
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10

Undergrad Thermal physics - how are Cp and Cv used?

  • Flucky
  • · Replies 5 ·
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5

Graduate Making Liquid Nitrogen at Home: Have You Tried It Yet?

  • imsmooth
  • · Replies 2 ·
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2

Undergrad Ideal Gases dealing with scientific notation

  • Janice
  • · Replies 1 ·
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1

Undergrad Witnessed Supercooled Liquid Phenomenon

  • RJ Emery
  • · Replies 5 ·
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5

Undergrad Does this equation exist? (Latent heat, temperature, entropy)

  • Flucky
  • · Replies 2 ·
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2

Graduate Questions about entropy, normal force, and the human body

  • Awe_Inspired
  • · Replies 3 ·
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3

Undergrad Water Cooling Heat Transfer Calculations

  • franksnsd
  • · Replies 9 ·
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9

Undergrad What is the relationship between ΔG and equilibrium on a graph?

  • sgstudent
  • · Replies 4 ·
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4

Graduate Rijke tube: Why Sound is maximum when heated 1/4th length from bottom

  • ayushmorx
  • · Replies 5 ·
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5

Undergrad What is the minimum temperature to make lasingaction possible in laser

  • dexterdev
  • · Replies 2 ·
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2

Graduate Gibbs free energy and enthelpy relationship

  • iScience
  • · Replies 2 ·
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2

High School How can I change the airflow under a hotel room door to the hall?

  • ajdedo
  • · Replies 14 ·
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14

Graduate Airborne particle focusing in heated chamber using thermal emission?

  • taylaron
  • · Replies 13 ·
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13

Graduate Average energies (thermodynamics)

  • iScience
  • · Replies 8 ·
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8

Graduate Density of moist air at high temperatures?

  • jblc
  • · Replies 11 ·
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11

Graduate Calculating Inner Wall Temperature of Cylindrical Rocket Engine

  • mrknight415
  • · Replies 3 ·
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3

Undergrad Thermodynamics: deriving the quantum volume

  • iScience
  • · Replies 7 ·
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7

Undergrad Polytropic process vs perfect gas eq

  • imsmooth
  • · Replies 4 ·
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4

Undergrad What affects heat transfer within a material?

  • iScience
  • · Replies 2 ·
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2

Graduate Why is U used instead of Q to define temperature?

  • iScience
  • · Replies 7 ·
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7

Undergrad Thermodynamics and Open Systems

  • seeker12
  • · Replies 7 ·
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7

Graduate Heat transfer and time needed to reach thermal equilibrium

  • Ataghan
  • · Replies 7 ·
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7

Graduate Interaction of radiation with matter

  • Jimmy87
  • · Replies 9 ·
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9

Undergrad What is Cold Capacity and How Does It Relate to Heat Capacity?

  • Pythagorean
  • · Replies 12 ·
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12

Graduate What determines the shape of the temperature-entropy graph?

  • iScience
  • · Replies 1 ·
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1

Undergrad Is it possible to recycle vehicle emissions in order to generate elect

  • jeremybigideas
  • · Replies 3 ·
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3

Graduate Drawing constant property lines on p-v/T-s/u-s diagrams

  • Urmi Roy
  • · Replies 3 ·
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3

Undergrad Ferrofluid Used as MRI Contrast Agent: Heat Risk?

  • anorred
  • · Replies 2 ·
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2

Graduate Gibb's phase rule and counting phases

  • member 392791
  • · Replies 1 ·
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1

Graduate Big Bang Entropy: Constant or Increasing?

  • Atlamalta
  • · Replies 6 ·
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6

Graduate Van der waal's equation and resulting curve

  • Urmi Roy
  • · Replies 19 ·
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19

Graduate The thermodynamics of stretched rubber, a function of speed?

  • Spinnor
  • · Replies 1 ·
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1

Graduate Differential form of the first law of thermodynamics

  • omberlo
  • · Replies 22 ·
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22

Undergrad How does heat transfer relate to work and internal energy change?

  • Toe Jailor
  • · Replies 7 ·
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7

Graduate How Can I Minimize Temperature Drop in Chamber B During Air Transfer?

  • Margalit
  • · Replies 4 ·
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4

High School Are the gas laws compeletely true?

  • Superhoben
  • · Replies 63 ·
3
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63

Undergrad 3 Cars Meets Newtons Second Law

  • valeriee
  • · Replies 1 ·
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1

Graduate Can Gravitational energy be derived from First Law of Thermodynamics?

  • Ethan0718
  • · Replies 28 ·
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28

Undergrad Why Are Isothermal Process Assumptions Necessary in Thermodynamics?

  • trojanviking
  • · Replies 3 ·
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3

Undergrad Greenhouse Gases: Explaining the Impact of CO2 & CH4 on Global Temperature

  • ftary
  • · Replies 6 ·
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6

Undergrad Higher temperature gradient result in heat traveling further/faster?

  • examorph
  • · Replies 4 ·
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4

High School Antarctic Temp Reaches -99.2C: Could CO2 Snow Have Fallen?

  • anorlunda
  • · Replies 4 ·
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4

Undergrad Understanding Heat Engines: Exploring the Second Law of Thermodynamics

  • Coop
  • · Replies 4 ·
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4

High School Change of State: Breaking Down What Really Happens

  • MathewsMD
  • · Replies 3 ·
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3

Graduate How does temperature in Celcius affect enthalpy in a compressed liquid?

  • MariusM
  • · Replies 2 ·
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2

Graduate Defining a thermodynamic system completely

  • Urmi Roy
  • · Replies 7 ·
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7

Undergrad How Do You Measure Solar Energy with an Umbrella, Tin Can, and Thermometer?

  • Freddy86
  • · Replies 1 ·
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1

Graduate Derivation for black body radiation. What is the 2 bout?

  • Outrageous
  • · Replies 2 ·
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2

Undergrad How do you determine the u-factor of a window assembly?

  • CarbonNeutral
  • · Replies 4 ·
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4

Graduate Heat Radiation in Thermodynamics

  • DarkFalz
  • · Replies 17 ·
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17

Undergrad Equating Heat and Einstein's equation confusion

  • pjbeierle
  • · Replies 2 ·
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2

Graduate Dipole Radiation: Practical Considerations

  • sliorbra
  • · Replies 1 ·
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1

Graduate What is the Concept of Ensemble in Statistical Mechanics?

  • gema
  • · Replies 1 ·
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1

Undergrad Thermodynamics and heavy use of partial derivatives

  • member 392791
  • · Replies 2 ·
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2

Undergrad How Much Power Loss Can We Expect from Space-Based Solar Farms?

  • Josh111
  • · Replies 3 ·
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3

Graduate I don't understand partition function

  • iScience
  • · Replies 10 ·
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10

Undergrad Comparing Reusable & Reliable Methods to Keep Babies Warm

  • Baby Incubator
  • · Replies 1 ·
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1