Question

A student collected the data shown in the table below during an experiment.

Answer 1

Answer: A. An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C.

Based on the data, which of the following conclusions can be made about the use of mercury and alcohol thermometers?

A. An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C.

B. An alcohol thermometer can measure a wider range of temperatures in a laboratory.

C. An alcohol thermometer is more reliable to measure the temperature of a liquid in a beaker that is 80 °C.

D. An alcohol thermometer is better to measure the boiling points of colorless liquids.

Explanation:

I just took the test and the correct answer is A. An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C!

Good Luck!!

Answer 2

Answer:

An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C.

Explanation:

A thermometer is a device used to measure temperature. A thermometer must contain a thermometric substance. A thermometric substance is any substance having a particular physical property that changes with temperature.

For all liquid-in-glass thermometers, the property that changes with change in temperature is the height of the liquid. There are two kinds of liquid-in-glass thermometers; mercury-in-glass thermometer and alcohol-in-glass thermometer.

Alcohol-in-glass thermometer measures very low temperatures up to as low as -115°C. If it measures such a low temperature, then it can efficiently measure -80°C hence the answer.

Alcohol-in-glass thermometers have a narrower temperature range than mercury-in-glass thermometer. The later is well adapter for the measurement bof higher tempetures up to 357°C.