Answer:
1) A
2) D
3) A
4) B
5) D
6) C
7) B
8) A
9) C
10) C
Explanation:
Sublimation is the term used for when a solid turns directly into a gas without first becoming a liquid. Therefore, camphor, when it transitions straight from solid to gas, is classified as a sublime material.
Gases diffuse at a faster rate than liquids due to the stronger intermolecular forces present in liquids, while gases exhibit negligible intermolecular forces.
When a material is subjected to heating, it reaches a stage where the temperature remains constant even as heat continues to be added. This temperature plateau denotes a phase transition, with the heat supplied turning into latent heat for either fusion or vaporization, depending on the specific transition occurring.
While it's accurate that evaporation happens at all temperatures and that the kinetic energy in molecules correlates with temperature, the latter does not clarify the former. Evaporation occurs because some surface particles have higher energy and escape due to unbalanced forces.
Cooking at higher altitudes is slower due to lower temperatures, while boiling water takes less time due to the decreased boiling point.
Gases can be compressed with ease because they occupy vastly less volume compared to the container's overall space. This significant gap between gas particles allows for easy compression.
The solid state experiences the strongest intermolecular forces. However, the reason given, while accurate, is not a fitting explanation for the assertion made.
This phenomenon is known as the Tyndall effect. Light beams are scattered by colloidal particles, making the beam's pathway visible within the colloidal mixture.
A salt solution is classified as homogeneous. Such a solution maintains uniformity throughout. If variations in composition arise, it becomes heterogeneous. Therefore, this explanation is incorrect.
A true solution will not show the Tyndall effect because its particles are smaller than those in colloidal solutions. A true solution cannot be regarded as a heterogeneous mixture, hence this reason is erroneous.
