Question

Which one of the following statements is wrong for gases?

• A. Gases do not have a definite shape and volume
• B. Volume of the gas is equal to volume of container confining the gas
• C. Confined gas exerts uniform pressure on the walls of its container in all directions
• D. Mass of gas cannot be determined by weighing a container in which it is enclosed

Answer 1

Answer: (D)

Mass of gas can be determined by weighing a container in which it is enclosed as follows:
Mass of the gas $=$ mass of the cylinder including gas $-$ mass of empty cylinder
So, it is a wrong statement.