The Kelvin Scale Measures

question 60

Multiple Choice

The Kelvin scale measures

• A) temperature in Fahrenheit-sized degrees above absolute zero.
• B) temperature referenced to zero at the freezing point of water.
• C) mass per unit volume, or density, with water having a value of 1.0.
• D) temperature in Celsius-sized degrees above absolute zero.

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Definitions:

Hydrogen Fuel Source

A clean energy option using hydrogen gas as fuel, producing water as the only emission when consumed in a fuel cell.

Ozone Depletion

The gradual thinning of the earth's ozone layer in the stratosphere, primarily caused by the release of chemical compounds containing gaseous bromine or chlorine from industry and other human activities.

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in the atmosphere and is absorbed by plants in photosynthesis.

Storage Difficulty

Challenges associated with keeping goods, materials, or data preserved and accessible over time.