Question

the table below shows four samples of carbon dioxide gas and the temperature of the water that they were in.

sample	temperature of water (°c)
2	73
3	55
4	63

which of the samples most likely had the lowest solubility?

Explanation:

Step1: Recall solubility - temperature relationship

The solubility of a gas in a liquid decreases with an increase in temperature.

Step2: Identify the highest - temperature sample

Among the given temperatures 78°C (Sample 1), 73°C (Sample 2), 55°C (Sample 3), and 63°C (Sample 4), the highest temperature is 78°C which corresponds to Sample 1.

Answer:

1