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Pressure, Volume, Temperature

Part of the Stoichiometry section of Coddy's Chemistry journey. Lesson 9 of 41.

Gas particles hit the walls of their container; all those pushes are the pressure $P$ , in atm.

Half the volume at the same temperature: twice the hits, twice the pressure.

P₁V₁ = P₂V₂

A piston pushed down to half the volume: 1 atm becomes 2 atm

Half the volume, twice the pressure

More particles, or a higher temperature, at the same volume: more pressure. Temperature goes in kelvin, $T = t+273$ , and pressure is in proportion to $T$ .

Challenge

A gas under a piston is at $1.0\ \mathrm{atm}$ in $2.0\ \mathrm{L}$ . The piston is pushed down until the gas takes $0.5\ \mathrm{L}$ , at the same temperature. What is the new pressure P_2?

Try it yourself

Physics diagram: gasbox

Solve for $P_{2}$

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Stoichiometry

1The Mole

Counting Particles: the Mole Avogadro's Number Molar Mass Mass, Moles and Particles Moles in a Formula Recap - Mole Bridge

4Equations and Mole Ratios

Balancing Equations Reading an Equation in Moles Mass to Mass Gas Volumes in Reactions Reactions in Solution Precipitation Recap - Rocket Fuel

2Gases

Molar Volume of a Gas Avogadro's LawPressure, Volume, TemperatureThe Ideal Gas Law Recap - Weather Balloon

5Limiting Reactant

The Limiting Reactant What Is Left Over Industrial Scale Recap - Aluminum Plant

3Solutions

Molar Concentration Preparing a Solution Ions in Solution Ion Concentrations Dilution Recap - Lab Prep

6Practice Problems

Recap - Fertilizer Plant Recap - Acid for the Plant Recap - Gases for Ammonia Recap - Ions in the Sample Recap - The Full Plant Recap - Bromide in Brine Recap - Chlorine for Bromine Recap - Magnesium Bromide Recap - Silver Bromide Test Recap - Balloon at Launch Recap - Balloon High Up Recap - Before It Bursts Recap - Hydrogen from Water