Thermodynamics Forum

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Air conditioner without heat output - Is it possible?
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EM radiation temperature vs particle temperature
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The violation of Newton's third Law
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Entropy question: Does a substance at 0K have no entropy?
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5
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Problems understanding the 2nd law of thermodynamics
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Physicists build Graphene Thermodynamic Battery
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3
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Gibbs "Paradox" and the Entropy of mixing
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Boiling & Critical Temperature: Understanding The Difference
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Why the alcohol thermometer is less precise than the mercury one?
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Can Phonons and/or Thz+ Acoustic FX cause Ionizing Radiation?
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Heating substances in paper cups?
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How Does Temperature Affect Sound Wave Velocity in Air?
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Inconsistent Radiation Questions
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Rate of conduction heat transfer with different hot-side and cold-side areas
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8
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First law of thermodynamics and the work done on a system
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Why is entropy of an object inversely related to its temperature?
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12
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Calculating Bricks for Winter Overnight Heat Storage in Stove
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Why are Water and Ethanol densities specified at different temperatures?
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10
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Is the Second Law of Thermodynamics Falsifiable?
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Euler's equation of thermodynamics in free expansion (Joule expansion)
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Classical Predictions of Scattered Radiation
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Should ice take longer to melt when used to run a heat engine?
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Is the principal of superposition of forces a part of the second law?
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Reversible Otto Cycle Efficiency: Investigating the Difference from Carnot's
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8
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Non-equilibrium thermodynamics
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5
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Does the rate of which something melts/vaporizes increases with heat?
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8
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Going from 1st state to 2nd through irreversible isothermal expansion
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10
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How Does CMB Radiation Relate to Blackbody Temperature?
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21
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At what size is kinetic energy no longer related to temperature?
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16
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Reversible processes need to be ONLY isothermal or adiabatic?
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3
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What chemical properties affect the specific heat?
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How is the wavelength of emitted EM radiation measured?
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14
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Were science and engineering seen as distinct fields in 18th century
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Temperature is a measure of the average kinetic energy of a gas?
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4
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Modelling Heat Transfer for Pulsating Laminar Duct Flow
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20
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Effect of time dilation on temperature
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4
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The Physics of cooking breakfast (basic thermodynamics)
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1
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Conduction heat transfer with varying cross section
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6
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Thermodynamic equation of differentials (and how to work with them)
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1
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Can hot water cool down through radiation?
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11
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Is latent heat only released and absorbed as radiation?
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Can heat transfer break an equilibrium?
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3
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Why can the efficiency of a refrigerator (heat pump) be greater than one?
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29
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E-M fields mutual induction in E-M radiation
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15
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Best outside color for thermal insulation
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At what range does a conservative force contribute to the thermal U?
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Thermodynamic sign convention for heat (i.e. in heat engines)
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11
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How do molecules radiate photons and contribute to thermal radiation?
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5
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Carnot function -- How can I prove f(t2,t1)=f(t2−t1,0)
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7
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The Second Law of Thermodynamics and the Stefan-Boltzmann Law
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Can Entropy Serve as a Proxy for Competition Levels in Economic Systems?
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19
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How to think about entropy microstates/macrostates for a gas in a box
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Fundamental equation (thermodynamics) from Euler's equation
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Partial derivatives of thermodynamic state functions
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Describing the second law of motion using linear momentum
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Surface temperature-laser radiation
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What is the true meaning of temperature? Is it global or local?
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10
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Integration of inexact differentials in Thermodynamics
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Thermodynamics: calculate thermodynamic derivative from data?
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1
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I with understanding Kepler's second law
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Night sky cooling, cooling by transmission or as 'heat sink'
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What Happens to Entropy in a Shrinking, High-Temperature Universe?
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What is the role of heat and pressure in a slow thermodynamic process?
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How to show directly that ##\vec{F}=-\mu\vec{v}## increases entropy?
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Clarification about Kirchhoff's law of thermal radiation
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Decoding Thermal Measurement Equations with KD2 Pro
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Below what freezing temperature is it not possible to have frost?
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Thermal Radiation Behavior of Non-Black Bodies: I'm Confused!
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What is the change in entropy for a colloid settling out of solution?
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6
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How many reversible thermodynamic cycles are there between two heat reservoirs?
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12
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Meaning of thermodynamic probability
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Temperature inside an enclosed space
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Brewster's angle, dipole radiation and refraction
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Low-Temp Liquid Helium System: Evaporation Heat & Temperature
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1st Law of thermodynamics : moving reference frame
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8
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Can solar heating of hot cathodes generate useful power?
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Temperature and level temperatures
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Is Elasticity Possible in Collisions at a Microscopic Level?
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Contribution of surface heat to atmospheric warming
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Irreversible cycles, Carnot's Principle and volume-pressure diagrams
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Droplets on a solid / liquid surface (engineering)
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12
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Thermodynamics and Statistical Mechanics: An intermediate level course
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Help finding thermal insulation physics paper
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Does radiation pressure depend on the wave phase?
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9
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What is the Entropy at ZERO Degrees Kelvin?
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18
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Confused about use of external vs internal pressure in thermodynamics
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13
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Can a black material reflect light when heated to incandescence?
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Ignoring the acceleration of a piston in thermodynamics
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Relation between the arrow of time and entropy
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Temperatures of the hot source and cold sink in a heat engine
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How to calculate entropy from positions and velocities of gas molcules
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6
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883
How Engineering physics impact on technology?
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5
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Calculating the "mean values" in the thermodynamic limit
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17
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Black Body Radiation -- why is it not at discrete wavelengths?
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3
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Does classical statistical physics predict newer things vs. thermodynamics?
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4
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Power delivered/Internal work done by a car's engine
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21
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Can Macroscopically Distinguishable Objects Have the Same Entropy?
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3
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Thermal inertia vs effusivity, what is the difference?
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4
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Is Heat Capacity Derivable for Non-Ideal Liquid Mixtures?
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4
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Temperature and non-equilbrium thermodynamics
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10
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