Gas laws 2

CHEMISTRY  SSS1 Second Term

WEEK 7

Gas laws 2

Performance Objectives

The student should be able to:

1. State Gay-Lussac’s and Avogadro’s law
2. Solve calculations on Gay-Lussac’s and Avogadro’s law
3. Solve calculations on ideal gas

Content

Gay-Lussac’s law of combining volumes

Gay-Lussac’s law states that the volume of gases which takes in a chemical reaction bears a simple whole-number ratio to one another and to the volume of the products if gaseous provided the temperature and pressure remains constant.

In the reaction,

H₂ (g) + Cl₂ (g) ---à 2HCl (g)

Gay-Lussac discovered that 1 volume of hydrogen gas reacted with 1volume of chlorine gas to form 2 volumes of hydrogen chloride. The equation for reaction shows the molecular…