Question

GIVE REASON FOR THE FOLLOWING -
1. Gases have no definite shape or volume.
2. An empty tumbler lowered into a glass beaker
containing water, on tilting shows bubbles of air coming
out, but when not tilted, no bubbles are seen.
please solve fast very very urgent ​

Answer 1

Answer:

Explanation:

1. The molecules of gases have less inter-particle force between them. Thus they float about here and there individually. Thus, gases don't have any definite shape or volume.

2. An empty tumbler though seems to be empty, contains atmospheric air in it. Thus, when lowered into a glass beaker containing water the air gets trapped and water applies buoyancy force to the air but the air can't move due to the tumbler. When you tilt the tumbler, it opens a way for air to escape. Thus the air comes out in form of bubbles.

                                                                        -- Hope you find it helpful.

Answer 2

Answer:

ANSWERS :

1. Gases don't have a definite volume because their intermolecular force of attraction is very weak and intermolecular space is very vast, the gas takes the shape of the container it is placed in
2. When a glass of water is tilted completely very quickly, the water takes the space of the gas molecules , therefore the gas gets released in the form of bubbles