Question

Old thermometers contained very small amounts of mercury. The mercury in the photo has a melting point of -38°C. What can u conclude about the melting point of the mercury in the old thermometer?

Answer 1

The thermometer can not be used to measure very low temperature

Step-by-step explanation:

Mercury-in-glass thermometer is one of the types of liquid-in-glass thermometers.

Given the very melting point of mercury, it is unsuitable to attempt to use this thermometer for very low temperature measurement.

Hence, from the melting point of mercury, this thermometer can not be used to measure very low temperature.