Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Surface Chemistry

Question:
A gas is taken in a closed vessel containing powdered charcoal get adsorbed on the surface is identified by the;
Options:
Decreased pressure of gas in the vessel
Increased pressure of gas in the vessel
Not possible to determine
Gas does not get adsorbed
Correct Answer:
Decreased pressure of gas in the vessel
Explanation:
If a gas like oxygen, hydrogen or carbon monoxide is taken in a closed vessel containing powdered charcoal, it is observed that the pressure of the gas in the enclosed vessel decreases. The gas molecules concentrate at the surface of the charcoal.