What do you observe about the conductivity meter as water is evaporated?

Answer 1

As water is evaporated, the conductivity meter will start detecting an increase in conductivity. This is because the concentration of dissolved ions in the water will increase as the water content decreases. The conductivity of water is primarily due to the presence of dissolved ions, such as sodium, chloride, calcium, etc. As the water evaporates, these ions become more concentrated, leading to a higher conductivity reading on the meter.