Thermodynamics Forum

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B Heat Pumps And The Peltier Effect
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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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2K
A Definition of entropy for indistinguishable and distinguishable particles
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22
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I Vapour pressure/solubility of small and big grain surfaces and corners
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5
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604
A Cavitation: radius of a bubble for compressible flow
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1
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717
I What is the Role of Convective Heat Transfer in Cavitation of Cryogenic Fluids?
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7
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834
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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692
I Reading course in statistical physics
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32
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I Understanding the Clausius-Clapeyron Formula: V_{l} and V_{g}
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3
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748
A Derivation of Statistical Mechanics
3
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78
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I How is target superheat table generated for R22 HVAC system
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2
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808
B Simple liquid/gas law question and liquid transfer query
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9
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873
I Magnetic fields are exceptions to the second law of thermodynamics?
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2
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959
A How Does Quantum Theory Provide a Measure for Microstates in Phase Space?
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7
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923
I Understand the Thermodynamic Identity: Is This Correct?
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3
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1K
Question about the rules of thermodynamics
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1
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801
I Is this water pumping device using the Rankine cycle?
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4
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703
B Exploring Entropy with Svante Arrhenius' Salt Water Experiment
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5
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766
I How Does the Flow Equation Apply in Higher Dimensional Phase Spaces?
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7
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788
B Sadi Carnot's Doubts: Exploring Universal Physics
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13
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893
I A calculation of microstates
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7
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1K
I Interpreting Thermal Power in Cylinder with Source & Sink
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5
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870
I Number of ways to distribute particles
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5
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919
I Kappa factor in heat equation and heat Flux
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3
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921
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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759
Help understanding "Heat capacity"
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28
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2K
A Non-isothermal conditions in liquid-gas nitrogen homogeneous mixture
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1
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663
Enthelpy and Isentropic compression/expansion
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3
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889
I Pool Solar Heating - Help orienting the roof-top solar collector please
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1
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700
I Probability in a small interval is ##P. dx##
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6
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722
A What Are the Mathematical Expressions of the First Law of Thermodynamics?
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2
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720
I Relating Entropy and the 2nd law
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2
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792
I Exploring Continuous Approximation of 1D Random Walk Steps (Reif, pg 14)
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1
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655
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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1K
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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986
I Standard measure of distance from equilibrium for all systems
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2
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679
B Infrared Detectors & The 2nd Law of Thermodynamics
5
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152
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I Book suggestions for classical thermodynamics
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6
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775
B Thermodynamics of Resistive Heating at Low Power
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33
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I Elementary Ideas About Entropy -- Is this textbook example correct?
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16
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865
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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714
I The Equilibrium Macrostate: Reif's Statistical Physics
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15
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962
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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906
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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943
I Exploring Oscillating Electric Fields for Dipolar Molecules
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4
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588
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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840
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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1K
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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851
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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769
Show that entropy is a state function
2
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57
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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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1K
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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475
I How does the cooling effect of this "white-est paint" work?
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3
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731
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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1K
A Rate and function to fill a theoretical vacuum
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1
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682
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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658
I Why is Entropy defined as a fraction of heat over temperature?
2
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45
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3K
B Irreversible Process to Move Gas from State 1 to State 2
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30
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I Looking for materials about ensemble average
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1
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586
A Volume constraint in micro-canonical derivation of statistical physics
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3
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554
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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835
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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1K
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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819
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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1
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507
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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854
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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I Volume of water consumed by vacuum
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5
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854
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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793
A Solve Asymmetric Piston Problem for SL
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5
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789
I Cycle of an air conditioner and power consumed
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8
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953
From weatherstation data to solar irradiation on specific surface
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2
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799
Connection between the two definitions of entropy
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11
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1K
Heat Transfer - Critical Radius of Insulation
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15
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1K
Temperature vs moisture content to sustain a fire in a given material?
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5
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793
Metals as Infrared Reflectors and their Temperature
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1
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941

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