Particle model of solids, liquids and gases Original Scenario-Based Practice

Questions

1. 1.

   A deep-space reconnaissance drone enters three isolated test compartments containing the same elemental substance in different states. Inside Compartment 1, the drone detects widely spaced particles moving rapidly in random straight paths, frequently striking the distant walls. In Compartment 2, particles remain in close contact while constantly sliding around one another, whereas Compartment 3 reveals particles packed tightly in an orderly geometric arrangement, vibrating solely in fixed locations. Which statement correctly identifies the physical state and particle behavior of one of these compartments?

   • A) Compartment 2 represents a liquid, where particles are held close by intermolecular forces but possess enough energy to flow past each other.
   • B) Compartment 1 represents a liquid, because the wide separation between particles gives liquids their fixed volume.
   • C) Compartment 3 represents a gas, because localized vibration allows the substance to easily compress and change volume.
   • D) Compartment 2 represents a solid, because continuous movement around neighbors defines a rigid crystal lattice.

Answers and step-by-step solutions appear after you finish the test.