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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)
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)
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)
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)
Maxwell Relations
Demonstrates derivation of Maxwell relations
id = maxwell-relations (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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
Single-Component Fugacity
Fugacity of single component as function of temperature or pressure
id = single-component-fugacity (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)