# Thermodynamic systems and variables

> Thermodynamics is the branch of physics that deals with the relationship between heat, work, and the internal energy of a system. To study thermodynamics, we first need to understand what…

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## Full notes

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## More in Thermodynamics

- [First law of thermodynamics](https://www.hlayiso.com/grade-11/technical-sciences/notes/thermodynamics/first-law-of-thermodynamics) — Next section
- [All Thermodynamics sections](https://www.hlayiso.com/grade-11/technical-sciences/notes/thermodynamics)

## Frequently asked questions

### What will I learn in "Thermodynamic systems and variables"?

This section covers Thermodynamic systems and variables as part of Thermodynamics in Grade 11 Technical Sciences. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Thermodynamic systems and variables", are written against the official CAPS curriculum and ATP for Grade 11 Technical Sciences.

### What should I study after "Thermodynamic systems and variables"?

Continue with the next section in Thermodynamics, or test your understanding with the interactive quiz linked to this section.

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