Thermodynamics Forum

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Why does the entropy of a closed system remain constant in a reversible process?
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Coping mechanisms for thermodynamics?
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I Can Specific Oscillating Electric Fields Heat Dipolar Molecules Selectively?
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I Ideal working gas for a Stirling engine
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I Thermodynamic functions and state variables
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I Expansion or Compression Work by Gas ##=\int{P_{ext}dV}##
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I Understanding Wrev > Wirrev in Thermodynamics
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17
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I Making a heat shield for my car's exhaust
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I About Reversible vs Irreversible Gas Compression and Expansion Work
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I Entropy change due to heat transfer between sources
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Heat and Entropy Increase Confusion
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I Passive radiative cooling of surfaces below ambient air temperature
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Show that entropy is a state function
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I Is Entropy the inexorable conversion of potential to kinetic energy?
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I Is GHG Theory/GW in conflict with Kinetic Theory of Gases?
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I Maxwell’s Relations and Differentiating With Respect to ##N_i##
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I How does the cooling effect of this "white-est paint" work?
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I Estimating a thermal equilibrium on a custom made fridge
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I Change of Variables in Thermodynamics
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I Is the Equation h = u + (0.185)Pv Accurate for Converting Energy Units?
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Is there a conflict between CPT symmetry and the 2nd law of thermodynamics?
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Mathematical equation for the deviation from ideality of real gases
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I Why is Entropy defined as a fraction of heat over temperature?
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B Irreversible Process to Move Gas from State 1 to State 2
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I Looking for materials about ensemble average
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A Volume constraint in micro-canonical derivation of statistical physics
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Heat bath and canonical ensembles
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I Strange feature of BE, FD and Boltzmann distributions
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I Compressing gas with piston: reasons for temperature increase?
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I Entropy after removing partition separating gas into two compartments
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I How Does Heat Transfer Impact Our Sensation of Temperature?
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A Can Raoult's Law Determine Boiling Points of Fuel Oil?
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3
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I Thermodynamic Pros/Cons coating light metal tanks with rubber
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Calculating temp rise caused by electric arc in an enclosed space
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3
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B Will entropy eventually destroy even an open and efficient system?
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838
B Is Mean Temp in 2 phase Heat Exchangers Higher Than Logarithmic Mean?
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A Equilibrium, entropy, probability - Release of constraints
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I Heat capacity for a real gas using the ideal gas (zero pressure) equation
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32
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B Lorenz COP of a heat pump and the temperatures of the hot/cold reservoirs
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B Maxwell-Boltzmann distribution under the influence of a gravitational field
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I Volume of water consumed by vacuum
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B Can a Heat Pump and Stirling Engine Create a Perpetual Energy Cycle?
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I Entropy and Heat Capacity Relation
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A Solve Asymmetric Piston Problem for SL
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I Cycle of an air conditioner and power consumed
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From weatherstation data to solar irradiation on specific surface
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2
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Connection between the two definitions of entropy
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11
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Heat Transfer - Critical Radius of Insulation
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15
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Temperature vs moisture content to sustain a fire in a given material?
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5
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Metals as Infrared Reflectors and their Temperature
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EM re-radiation from a metal object (antennas)
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14
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A query about heat capacity and specific heat capacity
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8
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Instantaneous Gas Compression: temperature increase?
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13
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What's the deal with plasma physicists setting heat cap. ratio to 3?
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Radiation leak test instruments
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Heat conduction from an isotherm spherical cap
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What exactly does the proposed 4th law of thermodynamics mean?
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Your thoughts about the entropy of coal?
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3
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Calculating how much heat must be added to increase temp
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The Draper point and why can't we see human radiation
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Definition of a system in Boltzmann entropy
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Sound Engineering: Why's it so hard to get things like timbre right?
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8
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991
Sensitivity of the liquid-in-glass thermometer
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Why the temperature of a car does not increase with velocity?
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What causes the peak in the thermal noise spectrum of an RLC circuit?
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15
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Absolute zeros other than temperature (e.g. pressure)
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Thermodynamic Axioms: Establishing Temperature, Internal Energy & Entropy
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How much radiation is too much?
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Friction/heat kinetic energy - reactive force
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73
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Thermodynamics problem -- Pressure oscillations in a jar
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Physical meaning of thermal conductivity tensor
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2
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How to do the calculations for a Wheatstone Bridge
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15
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Isothermal and adiabatic air compression -- different expressions
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13
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Life vs Entropy: Investigating an Unexpected Paradox
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23
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Wave frequency, medium and temperature
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Entropy change for spontaneous/ irreversible gas expansion
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Does Newton's Third law apply to torque/rotation?
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Understanding Entropy: A Fresh Perspective from Brian Greene's Latest Book
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Is it possible to calculate an incandescent bulb's temperature from V?
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Impact of the engine thermostat temperature setting on engine efficiency
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Why We Learn Reaumur Temperature Scale in High School Physics
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24
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Does Copper Conduct Heat Better than cPVC?
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Understanding Enthalpy: Confusion Cleared Up | Thermodynamics Course"
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Looking for a good introductory book on thermodynamics
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Understanding the Laws of Thermodynamics as described by Feynman
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Can you reverse entropy without using energy?
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Thermodynamics of a Fire Resistant Safe
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Is EM Radiation Present with Free vs Bound Electrons?
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Evolution — information increase and entropy
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Stability and concavity of the entropy function
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Can Heat Transfer Through Conduction Occur at Relativistic Speeds?
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Heating up water versus water with an iron brick
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7
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If pressure decreases, does temperature then decrease?
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"Where’s your second law of thermodynamics now?"
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First law of Thermodynamics and energy conservation
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Kelvin-Planck 2nd Law of Thermo & a Syringe Steam Engine
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26
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How Does a Thermos Bottle Work?
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24
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Temperature of a Solar panel in space
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9
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Air conditioner without heat output - Is it possible?
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17
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EM radiation temperature vs particle temperature
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14
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