Questions: During which phase change is energy absorbed by the substance? Freezing Condensation Melting Both a and b

Transcript text: During which phase change is energy absorbed by the substance? Freezing Condensation Melting Both a and b

Solution

Solution Steps

Step 1: Understanding Phase Changes

Phase changes involve the transition of a substance from one state of matter to another. During these transitions, energy is either absorbed or released by the substance.

Step 2: Identifying Energy Absorption

Freezing: This is the transition from liquid to solid. During freezing, energy is released by the substance.
Condensation: This is the transition from gas to liquid. During condensation, energy is released by the substance.
Melting: This is the transition from solid to liquid. During melting, energy is absorbed by the substance.

Step 3: Conclusion

From the above analysis, we can conclude that energy is absorbed by the substance during the melting phase change.