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Undergrad Context Rich Problem: Thermodynamics: How much ice?

  • Nomal
  • · Replies 1 ·
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Graduate Is the Phase Change Floatation Cycle a Theoretical Flaw in Thermodynamics?

  • Ambforc
  • · Replies 8 ·
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8

Undergrad A question from from thermodynamics

  • aradhya96
  • · Replies 1 ·
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Graduate Does physics forbid such a device; a heat destroyer

  • Deeviant
  • · Replies 129 ·
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Graduate CFL and lightbulb temperatures

  • astropi
  • · Replies 18 ·
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Graduate How did Carnot arrive at his theorem?

  • swampwiz
  • · Replies 11 ·
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11

Graduate Black-body radiation of a parabolic mirror in a vacuum violates thermodynamics?

  • Norseman
  • · Replies 9 ·
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9

Undergrad Flowing water temperature mixing

  • Valalvax
  • · Replies 13 ·
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13

Undergrad Internal energy change in isobaric system

  • cooper607
  • · Replies 3 ·
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3

Graduate Oil Tank Analysis for Formula Student Car: Heat Transfer Calculations

  • beckspp
  • · Replies 2 ·
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Graduate Could Interference be used to effect one way radiation?

  • philrainey
  • · Replies 3 ·
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Undergrad A hypothetical machine (fluid expansion)

  • FermatPell
  • · Replies 7 ·
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Graduate Entropy in an isobar transformation

  • alialice
  • · Replies 2 ·
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2

Undergrad How many wavelengths of caesium-133 radiation are used to define the second?

  • Johnahh
  • · Replies 5 ·
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Graduate Spontaniety of gas(Nitrogen) adsorption over solid(Zeolite).

  • AbhiNature
  • · Replies 1 ·
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Graduate Do lattice vibrations emit radiation?

  • Master J
  • · Replies 6 ·
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6

Graduate How Does Entropy Challenge Our Understanding of Life and the Universe?

  • jbrussell93
  • · Replies 21 ·
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21

Undergrad Heat transfer and elastic collision

  • luis20
  • · Replies 10 ·
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10

Graduate Confusing Contradiction: dE-TdS+PdV=0?

  • matsciguy
  • · Replies 21 ·
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21

Graduate Thermochromatic liquid crystals, how do they change color?

  • Coolcrab
  • · Replies 3 ·
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3

High School Why did the salt solution evaporate and leave deposits on the beaker?

  • nellocin
  • · Replies 1 ·
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Graduate Thermal Properties of an Inductor

  • JeffMandell
  • · Replies 1 ·
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Graduate Why is temperature & pressure constrained in a saturation state?

  • swampwiz
  • · Replies 1 ·
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Undergrad Is the Helmholez or Gibbs free energy every used outside of reactions?

  • swampwiz
  • · Replies 2 ·
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Graduate A question about terminology of phase state & criticality

  • swampwiz
  • · Replies 1 ·
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Graduate Is Heat Exchange Equal to Enthalpy Change in an Isobaric Process?

  • Carcul
  • · Replies 3 ·
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Graduate Understanding Black Hole Radiation: The Mystery of Light Escaping Explained

  • Petyab
  • · Replies 2 ·
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2

Graduate Use pressure to increase temperature of solar oven?

  • Sravoff
  • · Replies 7 ·
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7

High School Does lowering the water heater geyser temp save power

  • rajeshmarndi
  • · Replies 4 ·
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4

Undergrad Behavior of Liquid Nitrogen at 3000psi & 6000psi

  • SoloRider
  • · Replies 5 ·
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5

Can Sleeping on Copper Improve Well-Being and Stabilize Body Temperature?

  • Kop-Kote
  • · Replies 4 ·
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4

Undergrad Concept of heating gas on pressure.

  • chewchun
  • · Replies 5 ·
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5

Undergrad How do you calculate BTU of expanding compressed air

  • riderb
  • · Replies 1 ·
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1

Graduate Is there an effective life time of the universe where it will reach max entropy?

  • rolls
  • · Replies 21 ·
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Undergrad 2nd law and energy flows question.

  • weza
  • · Replies 6 ·
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6

Undergrad Does T and P effect the mass flow rate of air through a pipe?

  • sadowski777
  • · Replies 7 ·
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Graduate Functional structure of Surface Heat

  • balulu
  • · Replies 4 ·
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4

Graduate Understanding ensembles, micro/macrostates, equilibrium, reversibility and more

  • shockingpants
  • · Replies 1 ·
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Undergrad Heat exchange in active system

  • paullom
  • · Replies 2 ·
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High School Does Temperature Affect Mass in Chemistry Experiments?

  • TheShapeOfTime
  • · Replies 19 ·
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Undergrad Calculating the volume of gas in the same canister from 2 locations.

  • LAB
  • · Replies 3 ·
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3

High School Newton's Third Law Explained: Is it for Cushions?

  • spectrum123
  • · Replies 6 ·
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Undergrad Adiabatic Process: Burst Tire & Cloud Formation

  • Mareena
  • · Replies 4 ·
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4

High School What Does 8.9876e+3 Joules Mean?

  • GrayBush
  • · Replies 3 ·
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3

Graduate Maximizing Attic Efficiency: A Scientific Approach to Heat Transfer

  • VaqarAhmed
  • · Replies 14 ·
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14

Graduate How Does Electron Behavior Influence Thermodynamic Properties?

  • dhinesht
  • · Replies 2 ·
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2

High School Do all visible radiations have heat?

  • Karimspencer
  • · Replies 17 ·
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High School The meaning of force and Newton's third law

  • physio
  • · Replies 6 ·
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6

Undergrad Do all radiations work on solar panels?

  • Karimspencer
  • · Replies 2 ·
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2

High School Does Heating Helium Increase Its Buoyancy?

  • ybhathena
  • · Replies 17 ·
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Undergrad Evaporation of a mostly sealed erlenmeyer flask

  • Slimjimi
  • · Replies 2 ·
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High School Heat Pump Basics: How Do They Work?

  • Luke77
  • · Replies 3 ·
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3

Undergrad Newton's Law of Cooling & Specific Heat Capacity

  • Bradley Sigma
  • · Replies 4 ·
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4

Undergrad Convection in a Bottomless Pit

  • ybhathena
  • · Replies 1 ·
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Undergrad Amout of energy needed to warm air

  • troymcfont
  • · Replies 2 ·
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2

Undergrad Calorie to Joules: Understanding the Fundamentals

  • Dunce
  • · Replies 2 ·
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Graduate Thermal equilibrium through radiation and Stefan Boltzmann

  • ktoff
  • · Replies 1 ·
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Undergrad What Temperature is Required to Break CO2 Molecules?

  • ANarwhal
  • · Replies 1 ·
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1

Undergrad Volume of Hot & Cold water required for a known volume and temperature

  • jmar71n
  • · Replies 3 ·
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3

Undergrad What is energy's role in natural forces like gravity and magnetism?

  • Momento
  • · Replies 40 ·
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Graduate Newton's Second Law assumptions

  • Matthew T
  • · Replies 11 ·
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Undergrad Is an Ideal Black Body Visible?

  • Swetasuria
  • · Replies 2 ·
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2

Graduate Heat capacity and its relation with internal energy

  • cooper607
  • · Replies 5 ·
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5

Undergrad Can plants/solar panels decrease entropy?

  • schiz0ai
  • · Replies 10 ·
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10

High School What is the formula for calculating rate of temperature change?

  • valete
  • · Replies 6 ·
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6

Undergrad Evaporation in 100% relative humidity

  • classicphysic
  • · Replies 1 ·
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1

Graduate Thermodynamics: Defining Pressure

  • matsciguy
  • · Replies 5 ·
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5

Undergrad Area under graph of 'energy versus time' graph

  • chewchun
  • · Replies 5 ·
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5

Graduate Entropy and Heat Capacity have the same units. Connection? Redundancy?

  • kmarinas86
  • · Replies 30 ·
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Graduate Something About My Deduction On the Fourier's Law of Heat Conduction

  • Zhaozhong Shi
  • · Replies 12 ·
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Undergrad Gas Thermometer. Not dependent on gas?

  • PFCalvin
  • · Replies 4 ·
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4

Graduate Stat. mech. says: temperature ALWAYS infinite; what goes wrong?

  • nonequilibrium
  • · Replies 9 ·
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9

Undergrad Basic doubt in thermodynamics 2nd law

  • aditya23456
  • · Replies 8 ·
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8

Undergrad Thermodynamics and Concentrated Solar Power

  • Strat-O
  • · Replies 3 ·
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3

Undergrad Dependance of radiation properties on wavelength

  • vin300
  • · Replies 5 ·
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5

High School Comparing Coldness: ICE vs WATER at 0°C

  • DhruvKumar
  • · Replies 7 ·
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7

High School Fusion? (latent heat of fusion)

  • DhruvKumar
  • · Replies 5 ·
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5

Undergrad Gas flow, time required to fill a tank

  • jnesbit
  • · Replies 4 ·
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4

Graduate Joule Thomson Effect: Adiabatic Free Expansion & Derivation

  • akhyansh
  • · Replies 4 ·
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4

Undergrad Thermodynamics is air ducts, dew point

  • rolan91602
  • · Replies 2 ·
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Undergrad What has more entropy out of steam, water and ice?

  • CraigH
  • · Replies 4 ·
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4

Graduate Possible conversion and units problems

  • infinitylord
  • · Replies 5 ·
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5

Graduate How to calculate entropy for a system

  • CraigH
  • · Replies 1 ·
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1

Undergrad Pressure in a piston cylinder assembly when both volume and temperature change

  • Marts12
  • · Replies 2 ·
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2

Graduate From molecular vibrational KE to temperature

  • A. Monte
  • · Replies 6 ·
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6

Graduate Degrees of freedom of an oscillator in an Einstein solid

  • PhysicsGirl90
  • · Replies 1 ·
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1

High School How is energy transferred from the bicycle wheel?

  • Michio Cuckoo
  • · Replies 7 ·
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7

Graduate How fast does density change in an isobaric system?

  • simple_logic
  • · Replies 3 ·
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3

Undergrad What is Enthalpy and How is it Used in Thermodynamics?

  • clevermetal
  • · Replies 9 ·
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9

Undergrad What happens to matter near absolute zero

  • robertjford80
  • · Replies 7 ·
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7

Undergrad Calculation of thermal stress.

  • chetanladha
  • · Replies 8 ·
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8

Undergrad How heat energy creats photon and how it jump to other atoms?

  • manimaran
  • · Replies 3 ·
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3

Graduate EMF Production in Thermocouples: Causes & Effects

  • mysteriously
  • · Replies 1 ·
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High School Hw can we relate conervation of momentum with Newton's third law?

  • ehabmozart
  • · Replies 4 ·
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4

Graduate Is Enthalpy Always Conserved in Different Expansion Paths?

  • flamcsd
  • · Replies 7 ·
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Undergrad Otto cycle exhaust heat rejection

  • forrestkk
  • · Replies 5 ·
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Graduate Question regarding carnot cycle

  • LEGEND_XEON
  • · Replies 8 ·
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High School Should I Drain the Ice Box for Better Chilling?

  • and7barton
  • · Replies 11 ·
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Graduate Is the Carnot efficiency valid for fuel cells?

  • Metaleer
  • · Replies 2 ·
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Graduate Entropy Reversal: Proven by Physics and Science

  • antonima
  • · Replies 21 ·
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21