Thermodynamics Forum

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Graduate Musing on the Foundations of Statistical Mechanics
  • Matterwave
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Graduate Need help with Henry's Law
  • CapriRacer
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Undergrad Can a snowflake grow forever?
  • pines-demon
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Graduate Why is 0 K unattainable?
  • Kakashi
  • · Replies 19 ·
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Undergrad Difference calculating enthalpy change by using thermodynamic table A-17 vs. A-2 with integration
  • lost captain
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Undergrad Joule-Thomson Expansion
  • Kakashi
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Undergrad Calculating Cooling Effect in Gas Cylinder Expansion
  • OG63
  • · Replies 5 ·
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5
Undergrad Is Callen right in claiming dQ=TdS for all quasi-static processes?
  • Anna57
  • · Replies 5 ·
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Pressure-Volume Work
  • Kakashi
  • · Replies 7 ·
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7
Peltier thermopar for hand heat charging battery
  • mitro
  • · Replies 30 ·
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High School Using battery energy to heat a battery…
  • Devin-M
  • · Replies 7 ·
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7
Undergrad Using the "triple point of water" to produce ice -- How does that work?
  • jeffinbath
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Undergrad Identification of changes in internal energy with work (in Callen's Thermodynamics)
  • Anna57
  • · Replies 5 ·
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Undergrad Can somebody explain this: Planck's Law in action
  • Matthias_Rost
  • · Replies 16 ·
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16
Undergrad What thermal cycle would describe the action of a candle carousel?
  • jsh111
  • · Replies 4 ·
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4
Undergrad Why use Stefan's Law to measure temperature?
  • sophiecentaur
  • · Replies 20 ·
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Graduate A single molecule diffusion in ideal gas
  • Galedon
  • · Replies 7 ·
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Undergrad Question about the absorption of heat based on color
  • timeuser84
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Graduate Detection of hot spots with a thermal (non-radiometric) camera
  • pcarvalho
  • · Replies 19 ·
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19
High School Why would an atmosphere without greenhouse gasses be colder than with them?
  • Graeme M
  • · Replies 33 ·
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Undergrad Ramjet effect on drone
  • oz93666
  • · Replies 15 ·
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15
High School Basic thermal energy transfer physics: Insulation value in open airways vs sealed airways
  • dacad
  • · Replies 4 ·
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Undergrad Simple thought experiment with Stefan-Boltzmann law: energy
  • haushofer
  • · Replies 7 ·
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7
Undergrad Thermo Hydrodynamic Effect
  • dom_quixote
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Undergrad Entropy and configurations of microstates
  • lost captain
  • · Replies 5 ·
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Undergrad Why work is PdV and not (P+dP)dV in an isothermal process?
  • lost captain
  • · Replies 6 ·
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Graduate Condensate rate of water for an air conditioning cooling coil
  • bkireland
  • · Replies 12 ·
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12
Undergrad What does equiprobable mean in the context of thermal motion?
  • Mike_bb
  • · Replies 116 ·
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High School Energy transfer water > air in a greenhouse
  • SpitfireIX
  • · Replies 5 ·
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5
High School Intuitive Explanation of Adiabatic Condition
  • Sudarshan_Hebbar
  • · Replies 5 ·
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5
Undergrad Why M.Planck used Boltzman distribution to calculate average energy?
  • aliinuur
  • · Replies 5 ·
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5
High School Comparing energy released to the energy needed to compress a gas (game design scenario)
  • Ax_xiom
  • · Replies 14 ·
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14
Undergrad Water Temperature and Different Altitudes
  • maryana-b1
  • · Replies 5 ·
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5
Undergrad Taking Derivatives of the Fundamental Property Relations
  • ChemEng
  • · Replies 10 ·
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10
High School Temperature-Dependence of Viscosity of a Fluid?
  • bingbong08
  • · Replies 1 ·
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Undergrad Meaning of average pressure in statistical mechanics
  • LightPhoton
  • · Replies 1 ·
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Undergrad Questions about Jean-Rayleigh's derivation of Ultraviolet Catastrophe
  • LightPhoton
  • · Replies 1 ·
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Undergrad Do uncapped bottles change the outcome of freezing gas bubbles?
  • shakhfenix
  • · Replies 1 ·
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High School How to calculate the efficiency of a steam engine?
  • Pisica
  • · Replies 10 ·
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Undergrad I'm looking for a substance that boils at room temperature
  • Pisica
  • · Replies 23 ·
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Graduate Phase change complexity of ammonium carbamate (AC) decomposition and recombination
  • GoldenGoose
  • · Replies 0 ·
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Undergrad Expected visible vapor time of boiling water at STP without any heat?
  • shakhfenix
  • · Replies 9 ·
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9
Undergrad How can visible gas bubbles remain intact inside frozen water?
  • shakhfenix
  • · Replies 8 ·
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8
High School Heat pump as a heat engine that operates in reverse
  • FranzDiCoccio
  • · Replies 19 ·
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High School Stirling efficiency and practice
  • Pisica
  • · Replies 4 ·
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Undergrad Will water of uniform temperature with perfect insulation stratify?
  • Ken Fabian
  • · Replies 12 ·
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Graduate Increasing the COP and the heat pump
  • Pisica
  • · Replies 6 ·
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High School Why does hot water rise to the top of a water heater?
  • sevensages
  • · Replies 66 ·
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Undergrad What will be the boiling point of fully-filled water in a vacuum container?
  • chandlerchoi
  • · Replies 6 ·
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High School Energy Efficient Boiling of Eggs
  • Hornbein
  • · Replies 9 ·
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9
Undergrad Relationship between the divergence of a field and its cause?
  • fluidistic
  • · Replies 3 ·
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Undergrad Resulting temperature of mixed liquids
  • synch
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Graduate Concepts in Thermal Physics 2nd Ed by Blundell - solutions
  • Jane11
  • · Replies 1 ·
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Undergrad Movable Wall in an Adiabatic System: Same Final Temperature?
  • Filipeml
  • · Replies 8 ·
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Undergrad Entropy and organized systems
  • TheusMX
  • · Replies 8 ·
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Undergrad Paradox: Thermodynamic equilibrium does not exist in gravitational fields
  • Petr Matas
  • · Replies 135 ·
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Undergrad How Did Ancient Persians Use Ice Pools to Produce Ice in the Desert?
  • askingask
  • · Replies 10 ·
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Undergrad Magnetic field and saturated vapor pressure
  • GastonL
  • · Replies 6 ·
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6
Undergrad Help me understand heating/cooling principles
  • lavalin
  • · Replies 1 ·
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Undergrad Frozen broccoli thermodynamics
  • Frabjous
  • · Replies 10 ·
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10
Graduate A question about Vanadium dioxide smart window heating
  • Another
  • · Replies 1 ·
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1
Undergrad How much energy is needed to blow up stone (and other materials)?
  • Ax_xiom
  • · Replies 28 ·
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28
Undergrad Calculating vapor pressure from Boltzmann distribution?
  • chingel
  • · Replies 0 ·
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0
Undergrad Statistical physics in 2D world: How to simulate gas and its interaction with objects? (game design)
  • XNTEABDSC
  • · Replies 6 ·
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6
High School What's the fastest the temperature of something can change?
  • SpeedOfLightYagami
  • · Replies 14 ·
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Undergrad Variation of air temperature with altitude
  • eneacasucci
  • · Replies 28 ·
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28
Undergrad Do smells travel farther in colder or hotter temperatures?
  • pines-demon
  • · Replies 8 ·
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Undergrad Gibbs Free Energy Correction Term
  • laser1
  • · Replies 5 ·
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5
Undergrad How to find the change in volume of a solid to a liquid
  • NullusSum
  • · Replies 3 ·
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3
Undergrad H-theorem and conservation of the Gibbs entropy
  • alexV
  • · Replies 6 ·
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6
Undergrad Why does an ideal gas satisfy ##(\partial U/\partial P)_T=0##?
  • zenterix
  • · Replies 4 ·
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Graduate To calculate dew pressure of hydrocarbon mixture by PC-SAFT
  • yan3220
  • · Replies 4 ·
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4
Undergrad Availability at fixed pressure and temperature
  • laser1
  • · Replies 10 ·
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Undergrad Phase Transition in a Pure Water System
  • LittleMissScare-All
  • · Replies 7 ·
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7
High School Does movement affect H2O freezing temperature?
  • Chris J
  • · Replies 16 ·
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16
Undergrad Question About Ideal Gas and Average Free Movement of Molecules
  • Calstiel
  • · Replies 69 ·
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Undergrad Does the use of microwave communication heat water particles?
  • ronaldcaius
  • · Replies 18 ·
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Undergrad A paradox about energy balance and steady state
  • fluidistic
  • · Replies 2 ·
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2
Undergrad Why pressure stays the same when doubling both volume and temperature?
  • lost captain
  • · Replies 35 ·
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Undergrad First law of thermodynamics -- two different expressions for dQ
  • laser1
  • · Replies 23 ·
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23
High School Quasistatic condition for a process involving a piston in a cylinder
  • heyhey281
  • · Replies 1 ·
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1
Undergrad Scaling Cake Baking Times
  • erobz
  • · Replies 11 ·
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Graduate Combined diffusion coefficient for gas mixture
  • Snow_buggy
  • · Replies 1 ·
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1
Undergrad Do refrigerants passing through a venturi act like steam?
  • Carno
  • · Replies 8 ·
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8
High School Why are the relative fluctuations of intensive properties so small?
  • heyhey281
  • · Replies 2 ·
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2
Undergrad How to Confirm the R-Value of a Piece of Insulation?
  • DuncanM
  • · Replies 9 ·
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9
Undergrad Energy Required to Evaporate Water
  • ATT55
  • · Replies 23 ·
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23
Undergrad How to calculate the mass of gas in a tank?
  • Leopold89
  • · Replies 109 ·
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Graduate Equating Gas Pressure and Projectile Stagnation Pressure
  • user1111999
  • · Replies 4 ·
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High School Would isolating the Solar System prevent its heat death?
  • Feynstein100
  • · Replies 3 ·
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3
Undergrad Does PYroMat only consider ideal gases?
  • Juanda
  • · Replies 5 ·
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5
High School Adiabatic processes and temperatures
  • Alan Todd
  • · Replies 2 ·
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2
Graduate Temperature calculation for combustion chamber
  • psiq222
  • · Replies 1 ·
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1
Undergrad Effects on Engine Overheating and Pressure Dynamics
  • tommd
  • · Replies 4 ·
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4
High School How the temperature of the Earth's surface affects the air pressure above it
  • GilSE
  • · Replies 7 ·
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7
Undergrad Heat pumps: Questions about compressor pump refrigerant gas and evaporator
  • GreenWombat
  • · Replies 30 ·
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Undergrad Is equilibrium vapor pressure different in vacuum and in air?
  • GilSE
  • · Replies 2 ·
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Graduate What is the -1st law of thermodynamics?
  • Abdul.119
  • · Replies 3 ·
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3
Undergrad How could you build a simple inverse greenhouse box?
  • askingask
  • · Replies 14 ·
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14
  • Redirect
Heat Transfer Coefficient of a circular water duct of rectangular cross section
  • Galst
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