What scientific tool would be the most helpful when measuring the temperature of a substance that is undergoing a phase change? A. a spectrophotometer B. a thermometer C. the periodic table D. a scale

QUESTION POSTED AT 01/06/2020 - 03:00 PM

Answered by admin AT 01/06/2020 - 03:00 PM

B. A thermometer is the scientific tool that would be the most helpful when measuring the temperature of a substance that is undergoing a phase change. A thermometer is a tool used to measure temperature, so this is obviously the correct answer. A scale measures weight, the periodic table is a list of elements and wouldn't be able to measure temperature, and spectrophotometer measures wavelength, so it cannot be applied here.
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