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Ch.3 Matter and Energy
Timberlake - Chemistry: An Introduction to General, Organic, and Biological Chemistry 14th Edition
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249당신이 사용하는 게 아니라요?교과서 변경
3장, 문제 46a

Identify each of the following changes of state as melting, freezing, sublimation, or deposition:
b. Snow on the ground turns to liquid water.

검증된 단계별 안내
1
Identify the initial state of the substance: In this case, snow is in the solid state (ice).
Identify the final state of the substance: The snow turns into liquid water, so the final state is liquid.
Determine the process that describes the change from solid to liquid: The transition from a solid to a liquid is called melting.
Recall that melting occurs when a substance absorbs heat energy, causing its particles to overcome the rigid structure of the solid and move more freely as a liquid.
Conclude that the change of state described in the problem is melting.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
1m
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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Melting

Melting is the process where a solid turns into a liquid due to an increase in temperature. This occurs when the particles in a solid gain enough energy to overcome the forces holding them together, allowing them to move freely as a liquid. In the context of the question, snow, which is solid ice, melts into liquid water as it warms.
추천 영상:
가이드 코스
2:09
Physical Properties of Fatty Acids Concept 2

Freezing

Freezing is the reverse process of melting, where a liquid turns into a solid as its temperature decreases. During freezing, the particles in a liquid lose energy and come together to form a solid structure. This concept is important to understand the phase changes of water, but it is not applicable to the scenario described in the question.
추천 영상:
가이드 코스
02:00
Freezing Point Depression Concept 1

Phase Change

A phase change refers to the transition of a substance from one state of matter to another, such as solid, liquid, or gas. These changes are driven by temperature and pressure variations, affecting the energy and arrangement of particles. In the question, the transition of snow (solid) to water (liquid) exemplifies a phase change, specifically melting.
추천 영상:
가이드 코스
03:40
Physical & Chemical Changes