Applications
Chapter Name : Thermodynamics |
Sub Topic Code : 102_11_06_02_02 |
Topic Name : Applications |
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Sub Topic Name : Isothermal and free expansion of an ideal gas |
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Introduction
• Expansion of a gas in vacuum (pex = 0) is called free expansion. • No work is done during free expansion of an ideal gas whether the process is reversible or irreversible.
Pre-Requisites:
Expansion, work
Real Life Question:
Why does a balloon deflate faster in cold?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Balloon | A balloon contracts faster in cold and expands in heat. |
Practical examples around us
| Examples | Explainations |
|---|---|
| Balloon | A balloon contracts in cold this is due to the contraction of gases in low temperature. |
What you learn in Theory:
• Expansion of a gas in vacuum (pex = 0) is called free expansion. No work is done during free expansion of an ideal gas whether the process is reversible or irreversible.
What you learn in Practice:
• Expansion of a gas in vacuum (pex = 0) is called free expansion. No work is done during free expansion of an ideal gas whether the process is reversible or irreversible.