Thermodynamics Forum

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I Experimenting with a vacuum pump
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10
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I Questions about a System in Equilibrium
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4
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813
I Is it cooler hanging ice packs from a fishnet bag or in a thermal lunch-bag?
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3
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699
I Difference between the thermal and mechanical efficiency
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3
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B Heat Pumps And The Peltier Effect
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6
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1K
Does a full fridge cost less money to run than an empty fridge?
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14
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A Definition of entropy for indistinguishable and distinguishable particles
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I Vapour pressure/solubility of small and big grain surfaces and corners
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628
A Cavitation: radius of a bubble for compressible flow
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746
I What is the Role of Convective Heat Transfer in Cavitation of Cryogenic Fluids?
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7
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875
B Question about Thermophotovoltaics (thermal heat engine)
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17
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1K
I Microstates of an atom in an energy state
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1
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719
I Reading course in statistical physics
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32
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2K
I Understanding the Clausius-Clapeyron Formula: V_{l} and V_{g}
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3
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783
A Derivation of Statistical Mechanics
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I How is target superheat table generated for R22 HVAC system
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853
B Simple liquid/gas law question and liquid transfer query
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944
I Magnetic fields are exceptions to the second law of thermodynamics?
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2
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1K
A How Does Quantum Theory Provide a Measure for Microstates in Phase Space?
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972
I Understand the Thermodynamic Identity: Is This Correct?
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Question about the rules of thermodynamics
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873
I Is this water pumping device using the Rankine cycle?
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4
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746
B Exploring Entropy with Svante Arrhenius' Salt Water Experiment
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808
I How Does the Flow Equation Apply in Higher Dimensional Phase Spaces?
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823
B Sadi Carnot's Doubts: Exploring Universal Physics
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13
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914
I A calculation of microstates
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1K
I Interpreting Thermal Power in Cylinder with Source & Sink
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5
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924
I Number of ways to distribute particles
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5
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I Kappa factor in heat equation and heat Flux
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3
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989
I Compressible choked gas flow through an orifice -- Excel formula
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1
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2K
I Equilibrium equation if the barrier allows particle exchange
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7
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788
Help understanding "Heat capacity"
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28
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A Non-isothermal conditions in liquid-gas nitrogen homogeneous mixture
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694
Enthelpy and Isentropic compression/expansion
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3
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937
I Pool Solar Heating - Help orienting the roof-top solar collector please
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1
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733
I Probability in a small interval is ##P. dx##
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6
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747
A What Are the Mathematical Expressions of the First Law of Thermodynamics?
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2
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741
I Relating Entropy and the 2nd law
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2
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831
I Exploring Continuous Approximation of 1D Random Walk Steps (Reif, pg 14)
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1
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696
I A System is the transfer of energy between two mediums?
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14
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1K
I Calculating Cooling Effect in Gas Cylinder Expansion
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3
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2K
A Calculating the heat loss of an open water tank (aquarium)
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2
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1K
A Vacuum Flask Thermodynamic Equation
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2
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1K
I Standard measure of distance from equilibrium for all systems
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2
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710
B Infrared Detectors & The 2nd Law of Thermodynamics
5
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I Book suggestions for classical thermodynamics
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6
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800
B Thermodynamics of Resistive Heating at Low Power
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33
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2K
I Elementary Ideas About Entropy -- Is this textbook example correct?
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16
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916
B How Does Ambient Temperature Affect Aquarium Water Temperature?
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3
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1K
I Modeling the concentration of gas constituents in a Force Field
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6
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769
I The Equilibrium Macrostate: Reif's Statistical Physics
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15
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1K
B HFC-134a Refrigerant & 2nd Law of Thermodynamics
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20
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1K
I Probability in statistical mechanics
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23
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945
Why does the entropy of a closed system remain constant in a reversible process?
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10
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2K
Coping mechanisms for thermodynamics?
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8
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1K
I Exploring Oscillating Electric Fields for Dipolar Molecules
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4
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625
I Ideal working gas for a Stirling engine
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1
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2K
I Thermodynamic functions and state variables
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8
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884
I Expansion or Compression Work by Gas ##=\int{P_{ext}dV}##
2
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45
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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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6
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1K
I About Reversible vs Irreversible Gas Compression and Expansion Work
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4
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920
I Entropy change due to heat transfer between sources
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15
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1K
Heat and Entropy Increase Confusion
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13
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1K
I Passive radiative cooling of surfaces below ambient air temperature
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3
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822
Show that entropy is a state function
2
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6K
I Is Entropy the inexorable conversion of potential to kinetic energy?
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17
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2K
I Is GHG Theory/GW in conflict with Kinetic Theory of Gases?
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6
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1K
I Maxwell’s Relations and Differentiating With Respect to ##N_i##
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2
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528
I How does the cooling effect of this "white-est paint" work?
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3
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747
I Estimating a thermal equilibrium on a custom made fridge
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23
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1K
I Change of Variables in Thermodynamics
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4
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A Rate and function to fill a theoretical vacuum
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I Is the Equation h = u + (0.185)Pv Accurate for Converting Energy Units?
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2
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1K
Is there a conflict between CPT symmetry and the 2nd law of thermodynamics?
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1
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1K
Mathematical equation for the deviation from ideality of real gases
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2
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673
I Why is Entropy defined as a fraction of heat over temperature?
2
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3K
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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640
A Volume constraint in micro-canonical derivation of statistical physics
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3
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595
Heat bath and canonical ensembles
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8
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2K
I Strange feature of BE, FD and Boltzmann distributions
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6
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856
I Compressing gas with piston: reasons for temperature increase?
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5
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2K
I Entropy after removing partition separating gas into two compartments
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9
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1K
I How Does Heat Transfer Impact Our Sensation of Temperature?
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23
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A Can Raoult's Law Determine Boiling Points of Fuel Oil?
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3
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1K
I Thermodynamic Pros/Cons coating light metal tanks with rubber
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7
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Calculating temp rise caused by electric arc in an enclosed space
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3
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1K
B Will entropy eventually destroy even an open and efficient system?
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522
B Is Mean Temp in 2 phase Heat Exchangers Higher Than Logarithmic Mean?
3
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3K
A Equilibrium, entropy, probability - Release of constraints
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2
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877
I Heat capacity for a real gas using the ideal gas (zero pressure) equation
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32
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2K
B Lorenz COP of a heat pump and the temperatures of the hot/cold reservoirs
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3
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2K
B Maxwell-Boltzmann distribution under the influence of a gravitational field
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2
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1K
I Volume of water consumed by vacuum
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5
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901
B Can a Heat Pump and Stirling Engine Create a Perpetual Energy Cycle?
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6
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2K
I Entropy and Heat Capacity Relation
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2
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832
A Solve Asymmetric Piston Problem for SL
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5
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819
I Cycle of an air conditioner and power consumed
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8
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981
From weatherstation data to solar irradiation on specific surface
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2
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814

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