Question

Aqueous tension is dependent on:

• A. volume
• B. pressure
• C. temperature
• D. weight of gas

Answer 1

Answer: (C)

temperature

Aqueous tension is defined as the partial pressure of the water vapour present in the moist gas.

When the gas is collected over the water, it becomes moist due to the presence of a small quantity of water vapour caused by evaporation.

Then, the pressure exerted by moist gas = pressure exerted by dry gas + pressure of water vapour (aqueous tension).

Aqueous tension is dependent on temperature. It is independent of volume and pressure.

Hence, the correct answer is option $\text{C}$.