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Undergrad Absolute Zero, about -273.15ºC, is the coldest known temperature

  • Lazernugget
  • · Replies 12 ·
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12

Undergrad Calculations for raising temperature in specific amount of time

  • thepok
  • · Replies 1 ·
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1

Graduate Virial Theorem and Equipartition Theorem

  • Derivator
  • · Replies 4 ·
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4

Graduate Closed Loop Hot/Cold: Create Water From Air

  • jim44nelson
  • · Replies 2 ·
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2

Graduate Diffusion Coefficient for gases at different temperatures

  • capanni
  • · Replies 1 ·
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1

Undergrad What Does Fixed Volume Refer to in Thermodynamics?

  • Dars
  • · Replies 1 ·
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1

Graduate What exactly is the physics behind transition radiation and TR detectors?

  • Whiteblooded
  • · Replies 2 ·
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2

Undergrad Asynchronous motors - the heat of the rotor

  • fawk3s
  • · Replies 3 ·
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3

Graduate Where Is the Error in My Understanding of the Boltzmann Distribution?

  • exponent137
  • · Replies 4 ·
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4

Undergrad Does Gravity wipe the increase in 'Entropy' slate clean

  • NeilWallace
  • · Replies 7 ·
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7

Graduate Entropy change of an irreversible process

  • flasherffff
  • · Replies 2 ·
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2

Undergrad Relation between kinetic energy and temperature for hydrogen

  • magodiafano
  • · Replies 2 ·
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2

Graduate Does a Thermometer Truly Reflect Air Temperature in Kinetic Theory?

  • klimatos
  • · Replies 21 ·
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21

Undergrad Can a vacuum environment lower the boiling point of water?

  • gfought
  • · Replies 1 ·
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1

Undergrad Thermodynamics, meaning of gamma

  • AriAstronomer
  • · Replies 3 ·
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3

Undergrad Difference between heat and work

  • Jackk
  • · Replies 7 ·
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7

Undergrad Thermal Conduction of my Playstation 3 (Keeping it cool)

  • ceyhanb
  • · Replies 4 ·
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4

Undergrad Where Can I Find Thermodynamic Tables for n-Pentane and n-Butane?

  • Quadruple Bypass
  • · Replies 2 ·
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2

Undergrad - Cellphone Tower Radiation - tomorrow i must decide

  • radiationman
  • · Replies 54 ·
2
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54

Graduate Third law of thermodynamics and mixtures

  • paweld
  • · Replies 3 ·
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3

Graduate Confusion over melting & crystallization?

  • jeebs
  • · Replies 8 ·
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8

Undergrad 10 calories for 1 calorie of food

  • PhilKravitz
  • · Replies 6 ·
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6

Graduate Microcanonical vs canonical vs grand canonical ensemble

  • gizzmo
  • · Replies 1 ·
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1

High School Surprising Benefits of Adding Salt to Ice/Water Mixture

  • fawk3s
  • · Replies 19 ·
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19

High School One force or two forces in Newton's third law?

  • TurtleMeister
  • · Replies 21 ·
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21

Graduate Solvent heat up due to gamma ray

  • raj26
  • · Replies 20 ·
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20

Undergrad What is the required thickness of insulation for a furnace roof equipment?

  • PWoolfall
  • · Replies 1 ·
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1

Graduate Hoop stress in solid disc from thermal contraction

  • elrohir00
  • · Replies 5 ·
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5

Undergrad Compressing CO2 - Can Air Compressor Work?

  • MSOE1
  • · Replies 3 ·
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3

Graduate The adiabatic heat gradient is temperature dependent

  • davidjonsson
  • · Replies 5 ·
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5

Undergrad How Does Linear Expansion Vary with Multiple Temperature Changes?

  • limitkiller
  • · Replies 8 ·
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8

Undergrad Using pressure and temperature to ventilate a room?

  • cooljoebay
  • · Replies 3 ·
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3

Undergrad Window Fog Evaporation: Why Does It Happen?

  • Galap
  • · Replies 8 ·
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8

High School Does Temperature Increase Lead to More Moles According to Avogadro's Law?

  • jimmy42
  • · Replies 5 ·
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5

Undergrad Volume change when liquid goes to solid.

  • ladil
  • · Replies 3 ·
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3

High School Is Heat the Sole Factor in Rubber Band Strength?

  • usljoo
  • · Replies 24 ·
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24

Graduate Understanding Heat Transfer in a Red Hot Wire Immersed in Water: An Analysis

  • jangheej
  • · Replies 1 ·
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1

High School Specific Heat (The Very Concept)

  • aleph_0
  • · Replies 2 ·
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2

Undergrad Does gravity generate energy at least once?

  • only_theory
  • · Replies 19 ·
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19

Undergrad Non uniform temperature in a gas

  • Michael Owen
  • · Replies 2 ·
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2

Graduate COP in vapor compression refrigeration analysis

  • bearcharge
  • · Replies 5 ·
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5

Graduate What is the Meaning of Temperature at Equilibrium?

  • arcteus
  • · Replies 1 ·
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1

High School Why does air rush into a vacuum?

  • raam86
  • · Replies 4 ·
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4

Undergrad Cup of hot tea, and I need it just *warm*

  • Cantstandit
  • · Replies 1 ·
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1

Graduate Reversible Processes: Isothermal to Adiabatic Transition

  • AirForceOne
  • · Replies 10 ·
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10

Undergrad Why is Air in Pneumatic Cylinders Pressurized so High?

  • El Moriana
  • · Replies 4 ·
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4

Graduate Understanding the Difference Between Heat and Thermal Energy

  • hushai1
  • · Replies 3 ·
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3

High School Mysterious Freezing Patterns: What Causes Them?

  • alexbib
  • · Replies 4 ·
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4

Undergrad Relation between thermal expansion and stress

  • raju_pro
  • · Replies 5 ·
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5

Graduate Is There Any Reversible Quasi-Static Process?

  • Kevin_Axion
  • · Replies 2 ·
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2

Undergrad Perceptive Temperature Difference Between 0 ft and 9,000 ft

  • aquaflight
  • · Replies 1 ·
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1

Undergrad Efficient Energy Transfer from Heat?

  • FlyingPanda
  • · Replies 3 ·
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3

Undergrad Radiation that interacts with hydrogen

  • Northprairieman
  • · Replies 3 ·
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3

Undergrad Fahrenheit 451 and activation energy

  • NeilWallace
  • · Replies 3 ·
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3

Undergrad Understanding Boyle's Law: The Effect of Volume Increase at Constant Temperature

  • bobsmith76
  • · Replies 3 ·
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3

Graduate Is the law of entropy radical or smooth?

  • Mueiz
  • · Replies 6 ·
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6

Undergrad I still don't understand heat and energy

  • bobsmith76
  • · Replies 6 ·
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6

High School Maximum humidity in the air as a function of temperature

  • MasterD
  • · Replies 2 ·
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2

Undergrad Chemical Reactions Producing Light and Heat

  • FlyingPanda
  • · Replies 4 ·
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4

Graduate Newtons second law for coupled oscillators

  • pinsky
  • · Replies 8 ·
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8

Graduate A basic question about entropy and free energy

  • jeebs
  • · Replies 9 ·
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9

High School Heating Blue/Yellow Glass: What Happens?

  • ananthu
  • · Replies 5 ·
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5

Graduate Energy Interaction: Work Transfer in a Heated Oven

  • AirForceOne
  • · Replies 3 ·
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3

Graduate Information is a form of energy?

  • simpleton
  • · Replies 21 ·
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21

Undergrad Time-reversal invariance and irreversibilities

  • saim_
  • · Replies 7 ·
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7

Graduate What are weakly and strongly coupled system

  • inspike
  • · Replies 1 ·
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1

Undergrad Vap: Convert Vapor Volume to Density

  • maltamarco
  • · Replies 1 ·
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1

Undergrad Is there an ODE with only time dependence and constant position?

  • williamrand1
  • · Replies 19 ·
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19

Undergrad Heat transfer of hot metal immersed in water

  • jangheej
  • · Replies 6 ·
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6

Graduate Non-relativistic vs Ultra-relativistic

  • Piano man
  • · Replies 3 ·
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3

Graduate Ideal Gas Mixtures: Dalton vs Amagat Models

  • Saladsamurai
  • · Replies 1 ·
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1

High School What Happens to Atoms and Energy at Absolute Zero?

  • SaudAlt
  • · Replies 3 ·
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3

Graduate Possible New Types of Radiation or Physical Fields?

  • SAZAR
  • · Replies 12 ·
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12

Undergrad Reversible and irreversible reactions

  • ananthu
  • · Replies 5 ·
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5

High School More efficient to reheat water or keep it at constant temp.?

  • safro
  • · Replies 4 ·
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4

Graduate Where Did the Energy Come From? A Physics Puzzle on Entropy and Magnetism

  • luthier
  • · Replies 2 ·
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2

Undergrad When can Boltzmann distribution be used?

  • kompabt
  • · Replies 1 ·
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1

Undergrad Calculating Heat of Compression in a Fluid?

  • ISX
  • · Replies 1 ·
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1

Undergrad Calculating heat of compression?

  • ISX
  • · Replies 19 ·
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19

Undergrad Open,closed,and isolated systems.

  • LogicalAcid
  • · Replies 1 ·
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1

Undergrad Understanding Heat: The Relationship Between Radiation and Thermal Energy

  • LogicalAcid
  • · Replies 3 ·
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3

Undergrad Understanding Exothermic Reaction with a Catalyst - Tim's Questions

  • luthier
  • · Replies 1 ·
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1

Undergrad Why do different objects absorb and reflect different wavelengths of radiation?

  • LogicalAcid
  • · Replies 5 ·
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5

High School Units of principal specific heat

  • solace28
  • · Replies 2 ·
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2

High School How Is Energy Stored? Answers & Explanations

  • armolinasf
  • · Replies 10 ·
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10

High School Effect of air pressure on temperature

  • chas209365
  • · Replies 8 ·
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8

Undergrad Cold Guitar - Strings go Sharp

  • mjones32
  • · Replies 5 ·
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5

Graduate Violation of Newton's Third Law

  • damitr
  • · Replies 17 ·
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17

Undergrad Calculating Melting Time for 7.5g Ice Cube at 0°C

  • NabeelIshaq
  • · Replies 3 ·
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3

Graduate Clock & Entropy: Is it Possible to Build?

  • DaTario
  • · Replies 9 ·
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9

Undergrad Can Thermocouples Replace Steam Turbines for Nuclear Reactors?

  • Kalrag
  • · Replies 6 ·
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6

Undergrad Determining Constant Mass Flow Rate in a Compressed Air System

  • Calculost
  • · Replies 2 ·
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2

Graduate Blackbody Radiation and Emissivity Explained

  • Wannabeagenius
  • · Replies 2 ·
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2

High School Cold water rushing past heating element. Will the element feel hot?

  • bobbo7410
  • · Replies 8 ·
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8

Undergrad Answer: Pressure Differentials in Double Glazing Units

  • sainty
  • · Replies 3 ·
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3

Graduate Thermodynamics: Heat - Understanding Energy Transfer & Internal Energy

  • Hari_Seldon
  • · Replies 15 ·
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15

Graduate Gas cycle, rankine cycle, organic rankine cycle, kalina cycle, and all that

  • lalbatros
  • · Replies 1 ·
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1

Graduate Where Does Energy Go in Plastic Deformation of Materials?

  • SethGrace
  • · Replies 7 ·
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7

Undergrad How is ice a black body/almost a back body?

  • R Power
  • · Replies 3 ·
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3

Undergrad Can a Perfectly Insulated Thermos Keep Liquid at the Same Temperature Forever?

  • korneld
  • · Replies 6 ·
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6