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Adiabatic Gas Expansion between Two Tanks Digital Experiment
This digital experiment expands an ideal gas, which is at high pressure in the left tank, adiabatically into the right tank, which is initially evacuated.
id = adiabatic-gas-expansion-between-two-tanks-WIDE (do not remove this text)
Carnot Cycle on Ideal Gas
The Carnot cycle is an idealization for a heat engine operating reversibly between two reservoirs at temperatures T1 and T2.
id = carnot-cycle-on-ideal-gas (do not remove this text)
Chemical Equilibrium in the Haber Process
Number of moles at equilibrium for NH3 formation from N2 and H2
id = chemical-equilibrium-in-the-haber-process (do not remove this text)
Chemical Equilibrium in the Haber Process Digital Experiment
Measures the equilibrium compositions for ammonia formation. Equilibrium constants are calculated and used to calculate the heat of reaction.
id = chemical-equilibrium-in-the-haber-process-WIDE (do not remove this text)
Compressibility Factor Charts
Compressibility factor as function of reduced pressure and reduced temperature
id = compressibility-factor-charts (do not remove this text)
Construct P-x-y Diagram for VLE
Construct P-x-y diagram for VLE of an ideal mixture
id = construct-p-x-y-diagram-for-vle (do not remove this text)
Construct T-x-y Diagram for VLE
Construct a T-x-y diagram for VLE of an ideal mixture
id = construct-t-x-y-diagram-for-vle (do not remove this text)
Determine Antoine Constants Digital Experiment
A digital experiment to determine Antoine constants
id = determine-antoine-constants-wide (do not remove this text)
Effect of Temperature on Partial Miscibility
Gibbs free energy vs. mole fraction for a non-ideal binary mixture
id = effect-of-temperature-on-partial-miscibility (do not remove this text)
Entropy Changes in Mixing Ideal Gases
Isothermal mixing of ideal gases or adding a second gas to an initial gas
id = entropy-changes-in-mixing-ideal-gases (do not remove this text)
Evaporative Cooling of Water
This simulation shows how applying a vacuum in a closed system causes water to decrease in temperature and freeze due to evaporative heat loss.
id = evaporative-cooling-of-water (do not remove this text)
Gas-Phase Chemical Equilibrium at Constant P or V
Equilibrium for gas-phase reaction at constant pressure or constant volume
id = gas-phase-chemical-equilibrium-at-constant-p-or-constant-v (do not remove this text)
Harmonic Oscillator
Wave functions and time evolution of quantum harmonic oscillator
id = harmonic-oscillator (do not remove this text)
Heat of Reaction Temperature Dependence
Examine how heat of reaction changes with temperature
id = heat-of-reaction-temperature-dependence (do not remove this text)
Henry's Law for Gases Dissolved in Water
Mole fractions of gas dissolved in water as a function of temperature and pressure
id = henry-s-law-for-gases-dissolved-in-water (do not remove this text)
Heterogeneous Chemical Equilibrium
Number of moles of solids and gas in equilibrium in a constant-volume container
id = heterogeneous-chemical-equilibrium-with-calcium-carbonate (do not remove this text)
Ideal Gas Law
Choose from a variety of scenarios in a piston/cylinder system, with an ideal gas contained therein. This is a deep dive into ideal gas behavior and a great introduction to the thermodynamics of ideal gasses.
id = ideal-gas-law (do not remove this text)
Joule-Thomson Expansion
Gas expansion through an adiabatic throttle
id = joule-thomson-expansion (do not remove this text)
Langmuir Isotherms for a Binary Mixture
Langmuir isotherms for both components in binary mixture
id = langmuir-isotherms-for-a-binary-mixture (do not remove this text)
Lever Rule for a Binary Mixture on P-x-y Diagram
Lever rule calculates the relative amounts of two phases in equilibrium
id = lever-rule-applied-to-the-benzene-toluene-vapor-p-diagram (do not remove this text)
Light Attenuation Multiple Wavelengths
id = light-attenuation-multiple-wavelengths (do not remove this text)
Light Attenuation Single Absorber
id = light-attenuation-single-absorber (do not remove this text)
Maxwell Relations
Demonstrates derivation of Maxwell relations
id = maxwell-relations (do not remove this text)
Measure Heat Capacity with a Calorimeter Digital Experiment
A metal cube is dropped into water and the increase in the water temperature is used to determine the heat capacity of the metal.
id = calorimeter-wide (do not remove this text)
P-x-y and T-x-y Diagrams for VLE
VLE of an ideal binary mixture represented on P-x-y and T-x-y diagrams
id = p-x-y-and-t-x-y-diagrams-for-vapor-liquid-equilibrium-vle (do not remove this text)
Partial Molar Enthalpy and Entropy Quiz
Step-by-step procedure to identify partial molar properties and mixing properties
id = partial-molar-enthalpy-and-entropy-quiz (do not remove this text)
Partial Molar Enthalpy
Molar enthalpy for binary mixture versus mole fraction and partial molar enthalpies
id = partial-molar-h (do not remove this text)
Partially Miscible Liquids
Temperature-composition diagram for two liquids that are only partially miscible
id = partially-miscible-liquids (do not remove this text)
Particle in a Box
Wavefunctions for a quantum particle in a box
id = particle-in-a-box (do not remove this text)
Phase Diagrams from Van der Waals Equation of State
van der Waals equation of state to generate isotherms and isobars
id = single-component-pv-and-tv-diagrams (do not remove this text)
Pressure-Temperature Phase Diagram for Water
Water phase behavior on a log pressure vs temperature diagram
id = pressure-temperature-phase-diagram-for-water (do not remove this text)
Pressure-Volume Diagram for Water
This simulation helps you learn how to read pressure-volume diagrams.
id = pressure-diagram-for-water (do not remove this text)
Quantum Free Particle
This is a simulation of a quantum free particle, whose wave function is plotted. The wave function can be collapsed and evolved over time.
id = quantum-free-particle (do not remove this text)
Ranque-Hilsch Vortex Tube Digital Experiment
Higher-pressure, room-temperature air is fed to a Ranque-Hilsch vortex tube, which splits the air into hot and cold streams at lower pressure.
id = ranque-hilsch-tube-WIDE (do not remove this text)
Reversible and Irreversible Expansion or Compression
Expansion or compression work for ideal gas in piston-cylinder system
id = reversible-irreversible-expansion-compression-work (do not remove this text)
Right and Equilateral Triangle Phase Diagrams
Two representations of ternary phase diagrams
id = right-equilateral-triangle-phase-diagrams (do not remove this text)
Series Reactions in a Batch Reactor
Concentrations versus time for series reaction in a batch reactor
id = series-reactions-in-a-batch-reactor (do not remove this text)
Single-Component Fugacity
Fugacity of single component as function of temperature or pressure
id = single-component-fugacity (do not remove this text)
Temperature Changes in an Ideal Gas
Ideal gas heated or cooled at constant pressure or constant volume
id = temperature-changes-in-an-ideal-gas (do not remove this text)
Ternary Phase Diagram with Alternate Phase Envelope
Ternary phase diagram for ternary mixtures that are only miscible over a small composition range
id = ternary-phase-diagram-with-alternate-phase-envelope (do not remove this text)
Ternary Phase Diagram with Phase Envelope
Ternary phase diagram for ternary mixtures that are only partially miscible
id = ternary-phase-diagram-with-phase-envelope (do not remove this text)
Vapor-Liquid Equilibrium for System with an Azeotrope
P-x-y and T-x-y diagrams for a non-ideal binary mixture that has an azeotrope
id = vapor-liquid-equilibrium-diagram-for-system-with-an-azeotrope (do not remove this text)
Vapor-Liquid Equilibrium Virtual Laboratory
N/A
id = vle-virtual-laboratory (do not remove this text)
Vapor-Liquid-Liquid-Equilibrium
Phase equilibrium for two partially-miscible liquids on temperature-composition diagram
id = vlle (do not remove this text)
Visualization of Vapor-Liquid Equilibrium
Visualization of VLE of a binary mixture
id = visualvle (do not remove this text)
Adiabatic Compression of Pure Gases
Compression of n-butane to different pressures
id = adiabatic-compression-of-pure-gases (do not remove this text)
Batch Reactor with Multiple Reactions
Concentrations versus time for three reactions in an isothermal batch reactor
id = batch-reactor-with-multiple-reactions (do not remove this text)
Chemical Potential Dependence on T and P
Chemical potential of solids, liquids, and vapors at function of temperature and pressure
id = chemical-potential-dependence-on-t-and-p (do not remove this text)
Circumnavigating the Critical Point
Demonstrates how to circumnavigate the critical point on a log pressure vs. temperature diagram
Compare Clausius-Clapeyron and Antoine Equations
Saturation pressure is plotted versus temperature using the Clausius-Clapeyron equation and the Antoine equation
id = compare-clausius-clapeyron-and-antoine-equations (do not remove this text)
Electrical Conductivity of a Semiconductor
Charge carrier concentrations in Si as function of temperature
id = electrical-conductivity-of-a-semiconductor (do not remove this text)
Estimating Kinetic Parameters from a Batch Reactor
Experimental data in a batch reactor are used to estimate reaction order and rate constant
id = estimating-kinetic-parameters-from-a-batch-reactor-experiment (do not remove this text)
Fluids in the Critical Region
Critical isotherm and phase behavior on a pressure-volume diagram
id = fluids-in-the-critical-region (do not remove this text)
Gibbs Phase Rule
Gibbs phase rule for one- and two-component systems
id = gibbs-phase-rule-for-one–and-two-component-systems (do not remove this text)
Identify Chemical Potential Plots
Identify the correct curve for chemical potential versus temperature or pressure
id = identify-chemical-potential-plots (do not remove this text)
Infrared-Active Vibrational Modes in Water
Stretching and bending vibration modes for water
id = infrared-active-vibrational-modes-in-water (do not remove this text)
Lever Rule for a Solid-Liquid Phase Diagram
Lever rule for solid-solid-liquid system
id = lever-rule-for-the-uranium-titanium-solid-liquid-phase-diagram (do not remove this text)
Michaelis-Menten Enzyme Kinetics and the Steady-State Approximation
Michaelis–Menten enzyme kinetics is a model for rate equations that has a closed-form solution for the concentrations of reactants and products in an enzymatic reaction.
id = michaelis-menten-enzyme-kinetics-and-the-steady-state-approximation (do not remove this text)
Non-ideal VLE modeled by the Margules Equation
P-x-y and T-x-y diagrams generated using Margules equation for activity coefficients
id = non-ideal-vle-margules-equation (do not remove this text)
Osmotic Pressure
Osmotic pressure for several solutes dissovled in water
id = osmotic-pressure (do not remove this text)
Phase Behavior on a Pressure-Volume Diagram
Phase behavior of water on a P-V diagram
id = phase-behavior-on-a-pv-diagram (do not remove this text)
Polymerization in a Batch Reactor
Number and weight fraction of polymer versus number of monomer units for batch reactor
id = polymerization-in-a-batch-reactor (do not remove this text)
Simple Crystal Structures and Miller Indices
Unit cells and Miller indices of several crystal structures
id = simple-crystal-structures-and-miller-indices (do not remove this text)
Simulation of a Simple Gas Pressure Model
Molecules collisions with container walls lead to pressure of gas
id = simulation-of-a-simple-gas-pressure-model (do not remove this text)
SSLE Equilibrium
Solid-solid-liquid phase diagram for two elements that form solid compound
id = ssle-equilibrium (do not remove this text)
Temperature-Programmed Desorption
Rates vs temperature or time for temperature-programmed desorption
id = temperature-programmed-desorption (do not remove this text)
The 14 3D Bravais Lattices
Characteristics of 3D Bravais lattices for seven crystal systems
id = the-14-3d-bravais-lattices (do not remove this text)
The Photoelectric Effect
Light impinging on a metal surface can eject electrons
id = the-photoelectric-effect (do not remove this text)
Three Intermolecular Potential Models
Three models for intermolecular potentials
id = three-intermolecular-potential-models (do not remove this text)
Vapor Pressure of Binary Solutions
Partial pressures of a binary mixture as function of mole fractions
id = vapor-pressure-of-binary-solutions (do not remove this text)
Water Contact Angle for Heterogeneous Surface
Contact angle calculated for a rough, heterogeneous surface
id = water-contact-angle-for-heterogeneous-surface (do not remove this text)
Atomic Interactions - PhET
Attractive and repulsive forces between two atoms
id = atomic-interactions-phet (do not remove this text)
Blackbody Spectrum - PhET
Learn about blackbody spectra and how their profile relates to temperature
id = blackbody-spectrum-phet (do not remove this text)
Fourier: Making Waves - PhET
Discover qualitatively how sines and cosines add up to produce arbitrary periodic functions
id = fourier-making-waves-phet (do not remove this text)
Rutherford Scattering - PhET
Discover the qualitative difference between scattering off a positively charged nucleus and electrically neutral plum pudding atom, and how angle of deflection depends on the energy of the incoming particle, impact parameter, and charge of target
id = rutherford-scattering-phet (do not remove this text)
States of Matter - PhET
Phase changes as heat is added or removed
id = states-of-matter-phet (do not remove this text)