Question

melting
sublimation
melting + evaporation
evaporation
most amount of energy required
least amount of energy required
the correct ranking cannot be determined.

Explanation:

To solve this, we analyze the energy required for each phase change:

Step 1: Understand Phase Change Energies

• Melting: Solid → Liquid (needs energy, but less than vaporization/sublimation).
• Evaporation: Liquid → Gas (needs more energy than melting, as it breaks intermolecular forces more).
• Melting + Evaporation: Sum of melting and evaporation energies (more than either alone).
• Sublimation: Solid → Gas (skips liquid phase; requires energy for both solid→liquid and liquid→gas, so more than melting or evaporation alone).

Step 2: Categorize by Energy

• Most energy required: Sublimation (solid→gas, combines melting + evaporation energy) and Melting + Evaporation (sum of two processes). Among these, Sublimation and Melting + Evaporation have high energy, but Sublimation is a single process with equivalent energy to melting + evaporation. However, if we consider the options:
• Sublimation and Melting + Evaporation require the most energy.
• Melting requires the least energy (only solid→liquid).

Final Categorization (Typical for Phase Change Energy):

• Most amount of energy required: Sublimation, Melting + Evaporation
• Least amount of energy required: Melting

(Note: If the table requires placing each process:

• Most energy: Sublimation, Melting + Evaporation
• Least energy: Melting
• Evaporation is between melting and the combined/ sublimation.)

Answer:

• Most amount of energy required: Sublimation, Melting + Evaporation
• Least amount of energy required: Melting

(Adjust based on the exact table structure, but this is the energy hierarchy for these phase changes.)