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Undergrad Thermal dynamics - Metals on Engine Components

May 30, 2012 · Replies 5 · May 31, 2012

Replies: 5

Views: 2K

Undergrad PV=nRT – Why isn’t ‘T’ inversely proportional to ‘V’?

May 31, 2012 · Replies 5 · May 31, 2012

Replies: 5

Views: 9K

Graduate Room temperature superconductor

May 24, 2012 · Replies 9 · May 30, 2012

Replies: 9

Views: 4K

Graduate Need specific IR thermometer model for experimental physics lab

May 29, 2012 · Replies 1 · May 30, 2012

Replies: 1

Views: 2K

Graduate Thermal exchange calculations between water/glycol

May 28, 2012 · Replies 2 · May 29, 2012

Replies: 2

Views: 4K

Undergrad Pressure, Volume & Temperature: Investigating the Relationship

May 29, 2012 · Replies 4 · May 29, 2012

Replies: 4

Views: 2K

Undergrad Adiabatic Expansion - proof of PV^(gamma) = constant

May 29, 2012 · Replies 1 · May 29, 2012

Replies: 1

Views: 6K

Undergrad Incandescent bulb heat emission

May 10, 2012 · Replies 15 · May 28, 2012

Replies: 15

Views: 9K

High School Global temperature anomaly and photosynthesis.

May 27, 2012 · Replies 1 · May 28, 2012

Replies: 1

Views: 2K

Undergrad Heat engines: how can we yield work?

May 25, 2012 · Replies 5 · May 27, 2012

Replies: 5

Views: 3K

Undergrad Water under pressure and temperature effects

May 25, 2012 · Replies 3 · May 26, 2012

Replies: 3

Views: 10K

Graduate 'State-of-the-art' in regard to temperatures of atomic cooling

May 21, 2012 · Replies 2 · May 26, 2012

Replies: 2

Views: 2K

Undergrad The physics of the greenhouse effect.

May 25, 2012 · Replies 4 · May 25, 2012

Replies: 4

Views: 3K

Undergrad What is the underlying principle behind Le Chatelier's principle?

May 23, 2012 · Replies 4 · May 25, 2012

Replies: 4

Views: 2K

Undergrad Question about the destructive interference of radiation.

May 16, 2012 · Replies 7 · May 24, 2012

Replies: 7

Views: 3K

Undergrad Confusion in thermal radiation concepts - infrared, microwave, etc.

May 22, 2012 · Replies 8 · May 23, 2012

Replies: 8

Views: 4K

Undergrad Intensive gas variables problem

May 23, 2012 · Replies 2 · May 23, 2012

Replies: 2

Views: 2K

Undergrad Entropy and the Second Law of Thermodynamics

May 21, 2012 · Replies 7 · May 22, 2012

Replies: 7

Views: 3K

Graduate Chemical potential vs pressure and temperature; difficulty with Fermi gases

Apr 26, 2012 · Replies 21 · May 21, 2012

Replies: 21

Views: 10K

Graduate Dirac delta function with contineous set of zeros

May 20, 2012 · Replies 1 · May 21, 2012

Replies: 1

Views: 2K

High School Understanding Temperature in Space: Myth or Reality?

May 19, 2012 · Replies 4 · May 20, 2012

Replies: 4

Views: 2K

Graduate Why does liquid co2 goes back to solid at atmospheric press

May 19, 2012 · Replies 2 · May 20, 2012

Replies: 2

Views: 2K

Graduate Symmetric matrices and Newton's third law

May 18, 2012 · Replies 4 · May 19, 2012

Replies: 4

Views: 2K

Undergrad Combustion Volume vs. Heat Transfer and AM radio

May 18, 2012 · Replies 1 · May 18, 2012

Replies: 1

Views: 2K

Undergrad Amount of of heat required for different materials to heat.

May 14, 2012 · Replies 1 · May 18, 2012

Replies: 1

Views: 2K

High School How Much Heat Energy is Inside the Earth?

May 18, 2012 · Replies 1 · May 18, 2012

Replies: 1

Views: 2K

Graduate How to calculate Gibbs energy of formation at a temp T using standard state data?

May 15, 2012 · Replies 2 · May 18, 2012

Replies: 2

Views: 10K

High School Perpetual motion and Newton's first law

May 17, 2012 · Replies 3 · May 18, 2012

Replies: 3

Views: 7K

Undergrad Temperature Trend: Measure, Accelerate & Analyze!

May 16, 2012 · Replies 3 · May 18, 2012

Replies: 3

Views: 2K

Undergrad Need to know what the K stands for in this equation

May 16, 2012 · Replies 6 · May 17, 2012

Replies: 6

Views: 2K

Undergrad Has the first law of thermo dynamics been broken?

May 17, 2012 · Replies 1 · May 17, 2012

Replies: 1

Views: 2K

Undergrad Making sense of Differentiation in Thermodynamics

May 16, 2012 · Replies 13 · May 16, 2012

Replies: 13

Views: 6K

High School Is temperature different at altitude?

May 11, 2012 · Replies 14 · May 15, 2012

Replies: 14

Views: 9K

Graduate Cooling that is both Adiabatic and Isochoric - possible?

Apr 6, 2012 · Replies 6 · May 15, 2012

Replies: 6

Views: 3K

Graduate Is Evolution Thermodynamically Possible?

May 13, 2012 · Replies 14 · May 15, 2012

Replies: 14

Views: 3K

Undergrad How much energy does it take to Sink an Island?

May 14, 2012 · Replies 4 · May 14, 2012

Replies: 4

Views: 5K

Graduate Entropy and Disorder (Crystallization)

May 7, 2012 · Replies 15 · May 14, 2012

Replies: 15

Views: 9K

Graduate What rules, energy or entropy?

May 10, 2012 · Replies 31 · May 14, 2012

2

Replies: 31

Views: 5K

Graduate Heat loss through stainless steel tubing

May 11, 2012 · Replies 6 · May 13, 2012

Replies: 6

Views: 7K

Graduate Unravelling Heat Transfer: The Mystery of Conduction & Convection

May 9, 2012 · Replies 4 · May 12, 2012

Replies: 4

Views: 8K

Graduate Gibbs free energy doesn't increase (constant T and P) - proof doesn't seem right

May 7, 2012 · Replies 1 · May 12, 2012

Replies: 1

Views: 3K

Graduate When is the fundamental thermodynamic relation true?

May 9, 2012 · Replies 17 · May 11, 2012

Replies: 17

Views: 4K

Undergrad Condensation on outside of glasses

May 8, 2012 · Replies 6 · May 11, 2012

Replies: 6

Views: 3K

Undergrad Varying insulation thicknesses

May 10, 2012 · Replies 2 · May 10, 2012

Replies: 2

Views: 2K

Graduate Adiabatic Free Expansion Question

May 9, 2012 · Replies 9 · May 10, 2012

Replies: 9

Views: 5K

Graduate Can All Heat Be Converted to Work in Isothermal Expansion?

May 8, 2012 · Replies 3 · May 10, 2012

Replies: 3

Views: 2K

Graduate Fundamental thermodynamic relation confusion.

May 9, 2012 · Replies 7 · May 9, 2012

Replies: 7

Views: 2K

High School What factors contribute to the expected temperature of a pool?

May 8, 2012 · Replies 1 · May 9, 2012

Replies: 1

Views: 2K

Graduate Evaporation of Bourbon from a Wooden Barrel

May 7, 2012 · Replies 4 · May 8, 2012

Replies: 4

Views: 5K

Undergrad Effect of temperature on capillary rise

May 5, 2012 · Replies 2 · May 7, 2012

Replies: 2

Views: 14K

Undergrad Anyone knows what this means? Something to do with Thermodynamics?

May 1, 2012 · Replies 3 · May 5, 2012

Replies: 3

Views: 3K

Undergrad Colder with increasing altitude.

Apr 20, 2012 · Replies 64 · May 5, 2012

3

Replies: 64

Views: 15K

High School Defining Thermal Energy: Understanding the Concept and Its Various Forms

May 4, 2012 · Replies 2 · May 5, 2012

Replies: 2

Views: 3K

Undergrad How Does Boyle's Law Explain Gas Behavior in a Vacuum?

May 3, 2012 · Replies 2 · May 4, 2012

Replies: 2

Views: 2K

Graduate Energy exchange between a bell and a hammer

Mar 7, 2012 · Replies 10 · May 4, 2012

Replies: 10

Views: 4K

Undergrad Why does ice have a lower specific heat capacity ?

May 3, 2012 · Replies 3 · May 4, 2012

Replies: 3

Views: 28K

Undergrad Ionization temperature of an atom

Apr 28, 2012 · Replies 6 · May 4, 2012

Replies: 6

Views: 3K

Graduate Understanding Entropy: Calculations and Examples for Beginners

May 2, 2012 · Replies 4 · May 3, 2012

Replies: 4

Views: 3K

Undergrad Heat capacity, expansion while heating and cooking

May 3, 2012 · Replies 1 · May 3, 2012

Replies: 1

Views: 2K

Undergrad Tungsten vs Lead for Gamma Radiation Protection

May 1, 2012 · Replies 5 · May 2, 2012

Replies: 5

Views: 7K

Undergrad Questions about kinetic energy, thermal energy and momentum

Nov 29, 2011 · Replies 2 · May 2, 2012

Replies: 2

Views: 4K

Graduate Momentum Conservation & Kinetic Energy Loss in Perfectly Inelastic Collisions

Apr 22, 2012 · Replies 19 · May 1, 2012

Replies: 19

Views: 8K

Undergrad Heat transfer between 2 mediums

Apr 30, 2012 · Replies 1 · May 1, 2012

Replies: 1

Views: 3K

Undergrad Thermo Intensive properties and const. vol. compression

Apr 27, 2012 · Replies 8 · Apr 29, 2012

Replies: 8

Views: 3K

High School Is a 100% Efficient Machine Considered a Perpetual Motion Machine?

Apr 29, 2012 · Replies 5 · Apr 29, 2012

Replies: 5

Views: 2K

Graduate Why is enthelpy a function of Temperature and Pressure?

Apr 28, 2012 · Replies 1 · Apr 29, 2012

Replies: 1

Views: 11K

Graduate Does the Rankine Cycle really need a liquid phase?

Jan 15, 2012 · Replies 5 · Apr 28, 2012

Replies: 5

Views: 3K

Graduate Stopping power of ionizing radiation

Apr 27, 2012 · Replies 3 · Apr 28, 2012

Replies: 3

Views: 4K

Undergrad Has anyone successfully created a power generator using a hot water source?

Mar 14, 2012 · Replies 8 · Apr 28, 2012

Replies: 8

Views: 3K

Graduate Numerical on adiabatic expansion

Apr 27, 2012 · Replies 2 · Apr 28, 2012

Replies: 2

Views: 3K

Undergrad Why does the cavity in a lead sphere increase on heating?

Apr 26, 2012 · Replies 10 · Apr 27, 2012

Replies: 10

Views: 9K

Graduate Average Energy of Grand Canonical Ensemble

Apr 20, 2012 · Replies 1 · Apr 27, 2012

Replies: 1

Views: 3K

Undergrad Pressure on heated water tank (rocket)

Apr 26, 2012 · Replies 4 · Apr 27, 2012

Replies: 4

Views: 3K

Undergrad Is it possible to create a completely sealed room where a door can't be opened?

Apr 26, 2012 · Replies 11 · Apr 27, 2012

Replies: 11

Views: 4K

High School Inefficient: A/C set @ <78 °F, heater set @ >68 °F

Apr 23, 2012 · Replies 13 · Apr 26, 2012

Replies: 13

Views: 11K

High School Cosmic Microwave Background Radiation and Photography

Apr 22, 2012 · Replies 15 · Apr 25, 2012

Replies: 15

Views: 4K

Graduate Carnot engine efficiency * Carnot refrigerator efficiency

Apr 24, 2012 · Replies 2 · Apr 25, 2012

Replies: 2

Views: 19K

Graduate Why are there two Stefan Boltzmann Laws in Reif's book?

Apr 24, 2012 · Replies 2 · Apr 25, 2012

Replies: 2

Views: 3K

Undergrad Can beta radiation be detected in an expansion cloud chamber?

Apr 23, 2012 · Replies 11 · Apr 24, 2012

Replies: 11

Views: 4K

Graduate What Is the Difference Between Triple Point and Melting Point?

Apr 22, 2012 · Replies 2 · Apr 24, 2012

Replies: 2

Views: 3K

Graduate How does entropy production occur in non-equilibrium chemical processes?

Apr 22, 2012 · Replies 3 · Apr 24, 2012

Replies: 3

Views: 2K

Undergrad Calculating Heat Loss from an Anaerobic Digester

Apr 18, 2012 · Replies 5 · Apr 22, 2012

Replies: 5

Views: 2K

Graduate How quickly does hot air cool in a pipe?

Apr 22, 2012 · Replies 2 · Apr 22, 2012

Replies: 2

Views: 11K

High School What make air a good insulator?

Apr 22, 2012 · Replies 2 · Apr 22, 2012

Replies: 2

Views: 5K

Undergrad Calculating Thermodynamic Values for Different Processes

Apr 21, 2012 · Replies 2 · Apr 22, 2012

Replies: 2

Views: 3K

Undergrad Temperature change with altitude

Apr 11, 2012 · Replies 2 · Apr 22, 2012

Replies: 2

Views: 3K

Graduate Is There a Reactive Force on Radiant Electromagnetic Energy?

Apr 21, 2012 · Replies 5 · Apr 21, 2012

Replies: 5

Views: 2K

Undergrad Measuring non-ionizing radiation

Apr 19, 2012 · Replies 1 · Apr 19, 2012

Replies: 1

Views: 2K

Undergrad Help: Radiation suits for NukeReactors

Apr 4, 2011 · Replies 16 · Apr 18, 2012

Replies: 16

Views: 5K

Undergrad Thermal Equilibrium - in a microwave?

Apr 17, 2012 · Replies 3 · Apr 18, 2012

Replies: 3

Views: 3K

Undergrad Apparent Discrepancy Between Two Definitions of Newton's First Law

Apr 16, 2012 · Replies 12 · Apr 18, 2012

Replies: 12

Views: 4K

Graduate Recommendation for a Thermodynamics and/or Statistical Mechanics text?

Apr 16, 2012 · Replies 4 · Apr 18, 2012

Replies: 4

Views: 3K

Undergrad Identifying the various forms of Energy

Apr 14, 2012 · Replies 7 · Apr 17, 2012

Replies: 7

Views: 6K

Graduate Temperature change in an isentropic flow of an ideal gas

Apr 17, 2012 · Replies 4 · Apr 17, 2012

Replies: 4

Views: 5K

Graduate IR thermometers and Blackbody Radiation

Apr 14, 2012 · Replies 4 · Apr 17, 2012

Replies: 4

Views: 3K

Undergrad Thermodynamic energy of vibration

Apr 15, 2012 · Replies 3 · Apr 16, 2012

Replies: 3

Views: 2K

Undergrad Running a vehicle by burning aluminium?

Apr 16, 2012 · Replies 4 · Apr 16, 2012

Replies: 4

Views: 2K

Undergrad Is heat actually developed in resistors?

Apr 16, 2012 · Replies 6 · Apr 16, 2012

Replies: 6

Views: 2K

Undergrad Heat transfer equation puzzling results

Apr 16, 2012 · Replies 1 · Apr 16, 2012

Replies: 1

Views: 2K

High School How much heat is being drawn when water vaporize?

Feb 29, 2012 · Replies 30 · Apr 16, 2012

2

Replies: 30

Views: 6K

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