Thermodynamics Forum

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Graduate Physicists build Graphene Thermodynamic Battery
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Undergrad Experimental test of the Mixing Paradox
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Graduate Gibbs "Paradox" and the Entropy of mixing
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Undergrad Ratio of a real value to the max theoretical value: what term to use?
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High School Boiling & Critical Temperature: Understanding The Difference
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Graduate Statistical physics : Irreversibility
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Undergrad Calculate humidity raise/drop when opening a window
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Undergrad Molecular Ratchet -- Feynman's explanations
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Undergrad Why the alcohol thermometer is less precise than the mercury one?
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High School Why expansion of a gas implies cooling?
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Graduate Can Phonons and/or Thz+ Acoustic FX cause Ionizing Radiation?
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Undergrad Heating substances in paper cups?
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High School Energy needed to increase a volume
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Undergrad How Does Temperature Affect Sound Wave Velocity in Air?
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Graduate Inconsistent Radiation Questions
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Undergrad Rate of conduction heat transfer with different hot-side and cold-side areas
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Undergrad Cooling Time for Air Conditioning
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Undergrad First law of thermodynamics and the work done on a system
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Undergrad Why is the emissivity of metals low?
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Graduate Why is entropy of an object inversely related to its temperature?
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Undergrad The relationship between reversible and irreversible processes
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Undergrad T-S Diagram for an Irreversible Process
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High School What is the energy required to approach near absolute zero?
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Undergrad Calculating Bricks for Winter Overnight Heat Storage in Stove
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Undergrad Why are Water and Ethanol densities specified at different temperatures?
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Graduate Is the Second Law of Thermodynamics Falsifiable?
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Undergrad When does the ideal gas equation break down?
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Graduate Euler's equation of thermodynamics in free expansion (Joule expansion)
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Graduate Classical Predictions of Scattered Radiation
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Undergrad Is the energy of this system conserved?
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High School What is the significance of Δx and Δp in the ideal gas entropy equation?
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Undergrad Should ice take longer to melt when used to run a heat engine?
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Undergrad Confused about Mercury Barometers
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Undergrad Is the principal of superposition of forces a part of the second law?
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High School Calculating Flow Rate for Air and Methane in a Valve
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Graduate Reversible Otto Cycle Efficiency: Investigating the Difference from Carnot's
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Graduate Non-equilibrium thermodynamics
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Graduate Do gas-gas and/or liquid-liquid phase transitions exist?
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Undergrad Does the rate of which something melts/vaporizes increases with heat?
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Undergrad Going from 1st state to 2nd through irreversible isothermal expansion
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Graduate How Does CMB Radiation Relate to Blackbody Temperature?
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Undergrad At what size is kinetic energy no longer related to temperature?
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Undergrad Non-adiabatic expansion in Diesel and Otto cycles
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Graduate Reversible processes need to be ONLY isothermal or adiabatic?
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Graduate Why people say we can't "feel" UV?
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Undergrad What chemical properties affect the specific heat?
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Undergrad Derivation of Average Square Energy Fluctuation in a Canonical System
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Graduate How is the wavelength of emitted EM radiation measured?
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Graduate Irreversible quasi-static processes?
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Undergrad Were science and engineering seen as distinct fields in 18th century
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High School Temperature is a measure of the average kinetic energy of a gas?
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Graduate Modelling Heat Transfer for Pulsating Laminar Duct Flow
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Graduate Effect of time dilation on temperature
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Undergrad The Physics of cooking breakfast (basic thermodynamics)
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Undergrad Conduction heat transfer with varying cross section
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Graduate Thermodynamic equation of differentials (and how to work with them)
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Undergrad Can hot water cool down through radiation?
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Undergrad Is latent heat only released and absorbed as radiation?
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Undergrad Can heat transfer break an equilibrium?
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Undergrad Why can the efficiency of a refrigerator (heat pump) be greater than one?
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Graduate E-M fields mutual induction in E-M radiation
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High School Best outside color for thermal insulation
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Graduate At what range does a conservative force contribute to the thermal U?
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Graduate Thermodynamic sign convention for heat (i.e. in heat engines)
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Undergrad How do molecules radiate photons and contribute to thermal radiation?
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Graduate Carnot function -- How can I prove f(t2,t1)=f(t2−t1,0)
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Undergrad The Second Law of Thermodynamics and the Stefan-Boltzmann Law
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Graduate Can Entropy Serve as a Proxy for Competition Levels in Economic Systems?
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Undergrad P=ρ*g*h when h is large (density significantly changes)
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Graduate How to think about entropy microstates/macrostates for a gas in a box
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Graduate Fundamental equation (thermodynamics) from Euler's equation
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Graduate Partial derivatives of thermodynamic state functions
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Undergrad What Are the Implications of Choosing Different Paths in Entropy Calculations?
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Undergrad Describing the second law of motion using linear momentum
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High School Question about the Boltzmann distribution
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Graduate Surface temperature-laser radiation
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Graduate What is the true meaning of temperature? Is it global or local?
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Undergrad Proof of the Equipartition Theorem
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Graduate Integration of inexact differentials in Thermodynamics
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Graduate Thermodynamics: calculate thermodynamic derivative from data?
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Graduate I with understanding Kepler's second law
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Graduate Night sky cooling, cooling by transmission or as 'heat sink'
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High School Is εσT⁴ hemispherical or full sphere?
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Undergrad Why must the Gibbs Free Energy be proportional to N?
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Graduate What Happens to Entropy in a Shrinking, High-Temperature Universe?
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High School Boyle's law vs the Venturi effect
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Undergrad How air flows through a vacuum cleaner?
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Graduate What is the role of heat and pressure in a slow thermodynamic process?
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Graduate Adiabatic Compressible Flow in a Converging Duct
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High School How does mass influence energy transfer?
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High School Understanding Laplace's Correction and the Adiabatic Process
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Graduate How to show directly that ##\vec{F}=-\mu\vec{v}## increases entropy?
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Undergrad Clarification about Kirchhoff's law of thermal radiation
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Undergrad Why is the black body spectrum bell shaped if it's absorptance is equal to 1?
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Undergrad Decoding Thermal Measurement Equations with KD2 Pro
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High School Below what freezing temperature is it not possible to have frost?
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Undergrad Thermal Radiation Behavior of Non-Black Bodies: I'm Confused!
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Graduate What is the change in entropy for a colloid settling out of solution?
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Graduate How many reversible thermodynamic cycles are there between two heat reservoirs?
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High School Internal energy in the context of rest energy
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