Question

Salt solution freezes at a temperature a few degrees below the freezing point of pure water. You have to investigate how the temperature of some salt solution changes as it is cooled from +20°C to -20°C. You are provided with an electronic thermometer and a freezer, which is set to give a temperature of -20°C. Describe in words and/or with a diagram how you would set about this task.​

Answer 1

Explanation:

1) The freezing point of water is 4degree celcius to 0 degree celcius.

2). First we should take the saltsolution and check the temperature with the help of the thermometer and after getting it as +20degrees we will then put the saltsolution in the freezer in -20degrees and after it is freezed we should take it out and check the temperature of the salt solution.

hope it helps.