Chemical Engineering · Teaching & Learning Platform

Behind every result
is a story.

ChETL is a modular learning platform for chemical engineering. It pairs guided theory with a transparent computational engine, so students follow the reasoning from first assumptions to final result — not just the number.

Thermodynamics is the first module, currently in development. The platform is built to grow across the curriculum.

RESULT
Z = 0.87
the answer
THEORY
Z = PV ⁄ nRT
the governing relation
COMPUTATION
solve Redlich–Kwong → Zvapour
every step, with units
ASSUMPTIONS
— real gas · T = 350 K · P = 80 bar
what must hold
The gap ChETL addresses

Most tools return an answer. Few show the reasoning that produced it.

Engineering courses often move in three jumps — theory, formula, answer — and skip the reasoning in between. Calculators return a number without a trace. Students are asked to accept results they were never shown how to reconstruct.

How it works

One workspace, eight stages — from a concept to a result you can defend.

ChETL carries a student from first idea to mastered result around a single calculation, backed by one engine. Here is the shape of it — the full walkthrough, with real screens from the platform, lives on its own page.

app.chetl.org
The ChETL workspace: Chemical Engineering Thermodynamics, Pure Properties, with the Compressibility Factor topic open on the Theory tab beside the configuration panel.
A single topic workspace — theory, computation, plot, observations, blackboard, AI tutor and assessment as tabs around one result.
  1. 01 Learn

    Read the concept in a written, narrative chapter.

  2. 02 Think

    See the engineering reasoning mapped before any number.

  3. 03 Compute

    Set the problem; one validated engine does the rest.

  4. 04 Explore

    Watch the property move against the ideal-gas line.

  5. 05 Interpret

    Read the result back into engineering meaning.

  6. 06 Verify

    Trace every value: formula → substitution → result.

  7. 07 Discuss

    Ask a context-aware tutor about the result.

  8. 08 Master

    Check the reasoning with worked assessment.

Inside the platform

One integrated environment.

The layers of the workflow are not separate apps — they are tabs around one result, backed by one engine.

Guided Theory

Narrative chapters authored to a strict content standard — written to build understanding, not to summarize a textbook.

Interactive Computation

Change an input; the engine recomputes every dependent value. One validated source of truth behind every number.

The Blackboard

The engine's numerical trace — formula → substitution → result, with units. Transparent by construction; never a black box.

Interpretation

Every result read back into physical meaning and engineering consequence — what it implies, and when to trust it.

AI Tutor

A context-aware assistant grounded in the platform's own theory and computation — it explains this result, not generic answers.

Assessment

Practice with the same step-transparency, and assessments that check reasoning — not only the final number.

Our philosophy
“An engineer who can reconstruct a result understands it.”

Understanding is not accepting the answer — it is being able to rebuild it from first principles. Good engineers ask not only how? but why? and what does it mean? That belief shapes every layer of ChETL.

Read the philosophy

Who it's for

Built for people who take the discipline seriously.

Students

Move from memorizing to understanding. See the reasoning behind every result you're asked to trust — and learn to rebuild it.

Educators

Rigor students can see. Transparent computation that maps to how you already teach — one consistent engine, every step visible.

Departments

A consistent standard across the curriculum as modules grow — transparent, verifiable, and built to last.

What ChETL is built on

Single source of truth

One computational engine produces every value. What a student reads, plots, and interprets always agrees.

Transparent computation

Every number traces to a formula and a substitution, with units — nothing is collapsed or hidden.

Validated models

Established engineering models, applied consistently, and verified against reference behaviour.

Reasoning, by design

The platform is built to explain, not merely to calculate — understanding is the deliverable.

A modular platform

Built to grow across the chemical-engineering curriculum.

ChETL is designed as a modular platform. Thermodynamics is the first module under active development; further modules are planned to follow, each held to the same standard — guided theory, one transparent engine, every step visible.

Current course

Chemical Engineering Thermodynamics

Available
  • Pure Component Properties
In development
  • Solution Thermodynamics
Planned
  • Phase Equilibrium
  • Chemical Equilibrium
  • Thermodynamic Cycles
Future courses · placeholders
Chemical Process Calculations (Stoichiometry) Chemical Reaction Engineering Process Heat Transfer Mass Transfer Fluid Mechanics Process Design and Economics Process Control

Future courses are placeholders indicating intended direction — not work currently in development. Scope and sequence will evolve as the platform grows.

Behind every result is a story.

Understand the calculation, not just the answer.

Launch ChETL