Ideal Gas Equation
Chapter Name : States Of Matter |
Sub Topic Code : 102_11_05_07_01 |
Topic Name : Ideal Gas Equation |
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Sub Topic Name : Density And Molar Mass Of A Gaseous Substance |
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Introduction
• Combining the three gas laws, we get the ideal gas law. • PV = nRT is the ideal gas equation. R is the universal gas constant which is the same for all gases. • Ideal gas equation is a relation between four variables and it describes the state of any gas, therefore it is called equation of state.
Pre-Requisites:
pressure, volume, gas, temperature, gas constant, molar mass
Activity:
1 mole of any ideal gas would contain 22.7 L at Standard temperature and Pressure.
Real Life Question:
How can you find the temperature, pressure or volume of a gaseous substance?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Ideal gas equation | PV = nRT Using this equation, we can find any of the variables which describe the state of a gaseous substance. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Pressure gauge | Check out the changes in pressure as u go up a mountain. |
Real life uses :
Describing meteorological phenomena, rain, hurricane
Places to visit :
Check how the pressure changes as you go up the hill or mountain.
Practical examples around us
| Examples | Explainations |
|---|---|
| The state of a gas changes with height, heat | The variables describing the state of a gas change with location. E.g. the pressure of a gas changes with height. At higher altitudes the atmospheric pressure is low. |
What you learn in Theory:
Combining the three gas laws, we get the ideal gas law. PV = nRT is the ideal gas equation. R is the universal gas constant which is the same for all gases. Ideal gas equation is a relation between four variables and it describes the state of any gas, therefore it is called equation of state.
What you learn in Practice:
The state of a gaseous substance can be described using the Ideal gas law equation.