QQuestionChemistry
QuestionChemistry
Which state of matter has molecules moving at the fastest rate?
A. Gas
B. Solid
C. Liquid
D. Water
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Answer
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Step 1:I'll solve this problem step by step, following the specified formatting guidelines:
Step 2:: Understand Molecular Movement in Different States of Matter
In different states of matter, molecules have varying levels of kinetic energy, which determines their movement speed. Let's analyze each state:
Step 3:: Examine Molecular Characteristics
- Solids: Molecules are tightly packed and vibrate in fixed positions - Liquids: Molecules can move and slide past each other, but with limited mobility - Gases: Molecules have the highest energy and move rapidly in all directions
Step 4:: Compare Molecular Kinetic Energy
The kinetic energy of molecules is directly related to temperature. At a given temperature, gases have: - Least intermolecular forces - Most space between molecules - Highest average molecular velocity
Step 5:: Evaluate the Options
A. Gas ✓ - Molecules move fastest B. Solid ✗ - Molecules are essentially stationary C. Liquid ✗ - Molecules move slower than in gases D. Water ✗ - Water is a specific liquid, not a state of matter
Final Answer
Gas The key principle is that in a gas, molecules have the highest kinetic energy and move most rapidly compared to other states of matter.
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