The Coefficient of Thermal Expansion of Water at 20ºC Is

question 39

Multiple Choice

The coefficient of thermal expansion of water at 20ºC is 0.207 x 10^-3 K^-1 A thin glass tube contains a 75.0 cm column of water at 20ºC. If the thermal expansion of the glass tube is negligible, by how much does the length of the column of water expand when it is heated to 80ºC?

• A) 3.1 mm
• B) 9.3 mm
• C) 12.4 mm
• D) 4.1 mm
• E) 28 mm

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Definitions:

Nutrients

Essential substances that organisms need to acquire from their environment to maintain health and carry out life processes.

Dietary Reference Intakes

Guidelines provided for nutrient and food intake to prevent disease and promote health.

Nutrient Intake

The amount of nutrients consumed through diet, essential for energy, growth, and cell repair.

Saturated Fat

A type of dietary fat found in animal products and some plant oils, known for raising LDL cholesterol levels.