Answer: Option (b) is the correct answer.
Step-by-step explanation:
As we known that molecules of a gas are held together by weak forces which are Vander waal forces. Hence, these molecules are able to move freely from one point to another.
As a result, gases do not have a fixed shape and volume.
So, when a gas is placed in a container then it will occupy the volume of container as its molecules move freely all over inside the container.
Therefore, volume of gas will be the same as the volume of container.
Wheres density is mass divided by volume. So, it means that density if dependent on both mass and volume.
Weight is defined as the force exerted by the gravity on a body.
Mathematically, w = mass × g
where, w = weight
g = acceleration due to gravity
Thus, we can conclude that the volume of a gas is the same as its container.