Open Question
Identify each of the following changes of state as melting, freezing, sublimation, or deposition:d. Frost (ice) forms on the walls of a freezer unit of arefrigerator.
1. Matter and Measurements
States of Matter
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Which of the following choices will have the lowest observed viscosity?
A
Water
B
Helium gas
C
Molasses
D
Tar
Verified step by step guidance1
Understand the concept of viscosity: Viscosity is a measure of a fluid's resistance to flow. The higher the viscosity, the thicker the fluid and the more it resists flowing.
Identify the states of matter for each substance: Water, molasses, and tar are liquids, while helium is a gas.
Recognize that gases generally have much lower viscosities compared to liquids because their particles are much further apart and move more freely.
Consider the molecular structure and interactions: Water, molasses, and tar have stronger intermolecular forces compared to helium, which is a noble gas with very weak interactions.
Conclude that helium gas, being a gas with minimal intermolecular forces, will have the lowest viscosity among the given choices.
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