Question

CO gas is dissolved in water till the saturation level. What will happen if the temperature of water is increased?

• A. More CO gas will start dissolving
• B. CO gas will be released
• C. There will be no effect of temperature on solubility
• D. None of these

Answer 1

The correct option is B

CO gas will be released

Solubility of gases in liquids decreases on increasing the temperature. This means that if x gm of solute dissolves at some temperature, then increasing the temperature will dissolve less than x gm.

In this case, CO was already dissolved till saturation. But when the temperature is increased, less CO will be dissolved. The remaining CO gas will escape.