WAEC - Chemistry (2001 - No. 8)
Which of the following statements about ideal gases is/are correct? 1. The cohesive forces between their particles are negligible ll. They have no definite volume but occupy the volume of their containers III. They are not compressible IV. Their particles collide with loss of energy
l only
l and ll only
l, ll and lll only
l, ll, lll, and IV
Explanation
Here are some properties of ideal gases:
- Inert: Ideal gases are assumed to not react with each other.
- Elastic collisions: Ideal gases collide with the container's walls elastically, meaning they don't lose energy after collisions.
- Take the shape of their container: Ideal gases take the shape of their container, so the volume of the container is the same as the volume of the gas.
- Follow the ideal gas law: The ideal gas law is
PV= nRT - Compressibility factor of 1: The compressibility factor of an ideal gas is exactly 1.
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