Question

1. what causes the interactions between gas particles?

oa) ionic bonds
ob) metallic bonds
oc) heterogenous mixing
od) intermolecular forces

1. under what two conditions do real gases not act like ideal gases?

a) low temperature
b) high temperature
c) low pressure
d) high pressure

1. identify all the correct descriptions of an ideal gas.

a) there is no attraction between the molecules
b) molecules do have volume
c) collisions between molecules are elastic
d) there is an attraction between molecules
e) the molecules have no volume

Explanation:

1. Intermolecular forces cause interactions between gas - particles. Ionic and metallic bonds are for solids, and heterogeneous mixing is not the cause of gas - particle interactions.
2. Real gases deviate from ideal gas behavior at low temperatures and high pressures. At low temperatures, the kinetic energy of gas molecules is low, and intermolecular forces become significant. At high pressures, the volume of gas molecules becomes non - negligible compared to the container volume.
3. An ideal gas has no attraction between molecules, and the molecules have no volume. Collisions between ideal gas molecules are elastic.
4. Real gas molecules have volume and there is an attraction between them. Collisions are approximately elastic.

Answer:

1. D. Intermolecular forces
2. A. Low temperature, D. High pressure
3. A. There is no attraction between the molecules, C. Collisions between molecules are elastic, E. The molecules have no volume
4. B. Molecules do have volume, D. There is an attraction between molecules, C. Collisions between molecules are elastic (approximately)