Lesson: Chapter 9 — Heat

9.1. Temperature 3 of 4 Reset answers

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Question 3

Why is alcohol used rather than mercury to measure very low temperatures?

A Alcohol freezes at −115 °C, far below mercury B Alcohol boils at a high temperature C Alcohol is poisonous D Alcohol conducts heat better

The right answer is the one marked above.

Alcohol freezes at −115 °C, far below mercury. Mercury stays liquid only down to −39 °C.

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