Thermodynamics Forum

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Undergrad Internal and thermal energy vs Temp?

  • Austin0
  • · Replies 1 ·
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1

Undergrad Preserving Snow from January to June: The Science & Tactics

  • Wrongfellow
  • · Replies 4 ·
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4

High School What Is Inertia and How Does It Influence Motion?

  • gunblaze
  • · Replies 13 ·
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13

Undergrad Understanding Entropy: Molar Entropy of Helium vs Argon

  • psychedelia
  • · Replies 4 ·
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4

Graduate What is the Error in My Derivation of the Dry Adiabatic Lapse Rate?

  • jdlawlis
  • · Replies 4 ·
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4

Graduate Understanding Entropy: Micro vs. Macro States of a Cracked Egg

  • mviswanathan
  • · Replies 9 ·
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9

Undergrad Unpacking the Meaning of Specific Heat Capacity in Base Units

  • mikkol
  • · Replies 4 ·
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4

Graduate Heat Pump Powered Steam Engine

  • orome23
  • · Replies 6 ·
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6

High School Adding heating elements in series. Will this work?

  • bud415
  • · Replies 16 ·
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16

Graduate Ideal gas law, applied to non-rigid container

  • ARQuattr
  • · Replies 3 ·
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3

Undergrad How can multimeter measure temperature?

  • akinokoe
  • · Replies 1 ·
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1

Graduate How can I improve convergence for my complex mathematical model?

  • Redhunter
  • · Replies 4 ·
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4

Undergrad Jet Engine Thrust in Atmosphere vs Space

  • pixel01
  • · Replies 14 ·
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14

High School Where Can I Find an Enthalpy Calculator That Includes Pressure?

  • Natla
  • · Replies 1 ·
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1

Undergrad Measuring the gas temperature inside a vessel on the outside of the vessel

  • Sierra1934
  • · Replies 2 ·
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2

Undergrad Tire Pressure When Air Inside Slows Down

  • JohnDubYa
  • · Replies 21 ·
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21

Undergrad What Happens to dU, dQ, and dW During Boiling?

  • prasannaworld
  • · Replies 1 ·
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1

Undergrad Calculating heat transfer coefficient from experimental data

  • Jakob81
  • · Replies 6 ·
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6

High School Understanding the Joule: Defining and Applying Energy in Physics

  • mudkip9001
  • · Replies 1 ·
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1

Graduate Thermodynamics & Degrees of Freedom

  • IHateMayonnaise
  • · Replies 5 ·
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5

Undergrad 2 Identical Objects in Thermal Contact

  • Master J
  • · Replies 1 ·
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1

Undergrad Finding Temperature with Speed?

  • alucrid
  • · Replies 4 ·
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4

Graduate 2nd law of Thermodynamics and black body brightness function

  • pastro
  • · Replies 4 ·
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4

High School Heating oil and outside temperature

  • platina
  • · Replies 3 ·
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3

Undergrad How was absolute 0 calculated?

  • janakiraman
  • · Replies 20 ·
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20

High School Clothes Iron versus baseboard heater

  • drewtupps
  • · Replies 1 ·
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1

Graduate What is the derivation of the torque formula for a piston engine?

  • cjmdjm
  • · Replies 2 ·
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2

Graduate Why is the Carnot engine considered the most efficient?

  • Oerg
  • · Replies 15 ·
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15

Graduate Radiation from an ideal LC tank circuit

  • confuted
  • · Replies 2 ·
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2

High School How much energy do i produce with my dynamo while cycling ?

  • rusty009
  • · Replies 4 ·
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4

Graduate Is there a relationship between temperature and gravity

  • Carlos508
  • · Replies 3 ·
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3

Undergrad Heat transfer equation within soils

  • riscy
  • · Replies 2 ·
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2

Graduate Heat transfer rate to heating time

  • gemt
  • · Replies 3 ·
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3

High School Temperature: Definition & Measurement

  • sr_philosophy
  • · Replies 3 ·
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3

High School How Do Rockets Demonstrate Newton's Third Law of Motion?

  • SweatyFunSeek
  • · Replies 4 ·
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4

Undergrad Thermal expansion coefficient for liquids.

  • Geir Onsoyen
  • · Replies 1 ·
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1

Undergrad What Causes the Real Increase in Liquid Volume in Thermodynamics?

  • mohamedsafy
  • · Replies 1 ·
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1

Graduate Entropy and multiplicity of a gas when adding/removing wall in container

  • FredMadison
  • · Replies 2 ·
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2

Graduate Entropy & Time Reversal Symmetry: Breaking Symmetry?

  • jimmy.neutron
  • · Replies 1 ·
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1

High School Is 2 Million Disintegrations Per Minute a Dangerous Level of Radiation?

  • Bixby
  • · Replies 1 ·
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1

Undergrad Temperature measurement with a Pyromter

  • long qi
  • · Replies 2 ·
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2

Undergrad A question on thermal radiation

  • cfung
  • · Replies 4 ·
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4

Undergrad Beer + Liquid Nitrogen: Why Does It Foam & Popcorn?

  • YaroslavVB
  • · Replies 4 ·
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4

Undergrad Efficiency of heat pump and refrigerator

  • anizet
  • · Replies 2 ·
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2

UN: How Will the Sun's Life Cycle Affect Our Existence?

  • cam875
  • · Replies 19 ·
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19

Undergrad Building a Bimetallic Thermometer: Aluminium and Brass Sheets

  • dasher
  • · Replies 8 ·
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8

Graduate Synchrotron Radiation Units: Photons/s/mrad^2/1%BW

  • rockingroli
  • · Replies 3 ·
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3

Undergrad How does these two equations relate?

  • Zerius
  • · Replies 10 ·
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10

Graduate Entropy of a perfect gas at 0 kelvin

  • Andrew_
  • · Replies 11 ·
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11

Graduate Theorems of Liouville and Poincare & their relation to entropy

  • Heirot
  • · Replies 1 ·
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1

Undergrad Internal energy does or does not depend on volume of molecules?

  • p3t3r1
  • · Replies 1 ·
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1

Undergrad Calc based physics thermodynamics

  • lukasz08
  • · Replies 2 ·
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2

Undergrad Question About Air - Is it True That Air Can Combust?

  • Steve Stone
  • · Replies 8 ·
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8

Undergrad Twice as Hot/Cold? What Does That Mean?

  • Nick89
  • · Replies 9 ·
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9

High School Newton's Third Law of pushing a box

  • spidey64
  • · Replies 33 ·
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33

Graduate Negative Temperatures: Understanding the Impossible

  • LURCH
  • · Replies 10 ·
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10

Undergrad Sound wave energy transfer to heat water?

  • Necessity
  • · Replies 5 ·
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5

Graduate Is it possible to reach absolute zero and understand particle motion?

  • cam875
  • · Replies 5 ·
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5

Graduate The ever elusive free energy device

  • crhurd
  • · Replies 8 ·
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8

Graduate Explaining Adiabatic Process taking Van Der Waals Equations?

  • srikkanth_kn
  • · Replies 10 ·
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10

Graduate What is (Subject: Thermodynamics)

  • dcs23
  • · Replies 1 ·
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1

Undergrad Pizza: Latent Heat & Burning Tongue

  • sciontc03
  • · Replies 10 ·
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10

Undergrad Surface area vs rate of evaporation

  • rezaxis
  • · Replies 5 ·
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5

Graduate Herztian dipole + radiation patterns

  • JamesGoh
  • · Replies 4 ·
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4

Graduate Thermodyamics, total differentials and integration.

  • stephen_E
  • · Replies 5 ·
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5

High School How a Cathode Heater Works: A Clear Explanation

  • NJV
  • · Replies 1 ·
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1

Graduate Does Gravity Affect Entropy Levels in Self-Gravitating Systems?

  • yuiop
  • · Replies 8 ·
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8

High School Why do ice cubes stick together?

  • zacsee2000
  • · Replies 4 ·
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4

Undergrad Solving the Enthalpy Equation in C++

  • ZachGriffin
  • · Replies 1 ·
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1

Undergrad Jogging bicycling or driving, most energy efficient?

  • Chaos' lil bro Order
  • · Replies 3 ·
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3

Graduate Calculating Gas Expansion Ratio for Fireball Formation

  • burnit
  • · Replies 1 ·
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1

Graduate Only quasistatic process can be a polytropic process

  • atavistic
  • · Replies 4 ·
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4

Graduate Wave questions and Čerenkov radiation

  • esvion
  • · Replies 5 ·
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5

Undergrad Mathematical and conceptual prerequisites of thermodynamics

  • naele
  • · Replies 4 ·
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4

Undergrad Thermal Conductivity Definition

  • Kasper_NYC
  • · Replies 1 ·
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1

Graduate Imperfections of classical thermodynamics

  • Jarek Duda
  • · Replies 12 ·
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12

Graduate Derivation of Entropy Eq - For Smart People

  • qbslug
  • · Replies 3 ·
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3

High School How long could human race survive without the sun?

  • SCab
  • · Replies 8 ·
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8

Graduate Can the Bose-Einstein Condensate reach 0 K?

  • spx0
  • · Replies 1 ·
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1

Undergrad Can Radiation Be Converted to Electricity?

  • Drakma
  • · Replies 3 ·
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3

Graduate What is the relationship between partial derivatives in thermodynamics?

  • Jacobpm64
  • · Replies 3 ·
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3

Graduate Reason behind the definition of Helmholtz free Energy

  • Narcol2000
  • · Replies 4 ·
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4

Graduate Comparison Between Two Isolated Systems

  • J. Richter
  • · Replies 5 ·
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5

Graduate Stages of Gas Thermal Ionization

  • gareth
  • · Replies 11 ·
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11

Undergrad What Happens When Cooled Air Passes Over a Vortex Tube?

  • Nolgosphere
  • · Replies 1 ·
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1

Graduate Standard deviation of the energy of a system in a heat bath

  • Narcol2000
  • · Replies 2 ·
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2

Graduate How does heat cause radiation? And what role do electrons and spin energy play?

  • rcgldr
  • · Replies 2 ·
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2

Heat: blankets v sleeping bag

  • jessica234
  • · Replies 6 ·
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6

Graduate Radiation Problem: Balancing Net Radiation of Two Spheres

  • philrainey
  • · Replies 4 ·
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4

Undergrad Heat absorption, IR - light - UV, differences?

  • Bad Monkey
  • · Replies 8 ·
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8

Undergrad What is considered low temperature in Debye/Einstein theories?

  • gemt
  • · Replies 7 ·
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7

Graduate Question regarding air flow in a closed circuit

  • NightSwimmer
  • · Replies 10 ·
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10

Undergrad Calculate a thermal expansion pitch change

  • PianoTek
  • · Replies 5 ·
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5

Graduate Specific heat capacity for a monocromatic gas

  • gemt
  • · Replies 4 ·
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4

Undergrad Question about rapidly cooling air, and the resulting density

  • JasonWilliam
  • · Replies 24 ·
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24

Undergrad Diesel combustion and gas laws

  • Denis46
  • · Replies 1 ·
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1

High School Ways to bend radiation question?

  • philrainey
  • · Replies 2 ·
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2

Undergrad Does Radiation from a Colder Body Affect a Hotter Body in a Vacuum?

  • philrainey
  • · Replies 5 ·
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5

Graduate Thermal Radiation from a Liquid or Gas

  • radiatorguy
  • · Replies 3 ·
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3

Graduate Is It Possible for Humans to Reverse Entropy?

  • avant-garde
  • · Replies 13 ·
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13