Question

I take a bottle and put a funnel in its mouth .i seal the space between the funnel and the bottle tightly and pour water what will you observe after pouring water will water enter the bottle whatever conclusion this activity

Answer 1

Answer:

see that the water does not enter the bottle and Bubbles arise due to the air present in the bottle

Answer 2

We  observe that after pouring water it will  enter into the bottle because the air is taking up space in the bottle.

Explanation:

Observation and procedure done

• We take a bottle and place the funnel on the bottle and fill the bottle with water.
• Place the funnel on the bottle and fill the bottle with water.
• We observe that the water enters in the empty bottle.
• Then place the funnel is placed again  on the bottle and then we  put flour dough in the space between the funnel stem and the bottle mouth in such a way that air cannot go inside the bottle or come out of it.
• Now, we have  to fill the bottle with water. It is observed that after a little water has gone in, no more water goes in.
• Make a hole in the dough. Observe that water starts filling again into the bottle.
• There was air present in the bottle before it was filled with the water.
• When water is poured without the dough on the mouth of the bottle, the air inside the bottle has now connected with the air outside and it goes through the gap between the funnel and bottle mouth.
• Hence, when water is poured into the bottle, the air tries to escape through the gap. But when the dough was put, the air could not come out.
• After a little amount of water had entered the bottle, the air inside the bottle will get compressed and the pressure will be  increased as stated by Boyle's law.
• The increased pressure does not allow water to enter the bottle.
• When a small hole is made in the dough, a connection will be established in between the outside and the inside of the bottle. Hence, as water enters into the bottle and the air comes out through the hole.

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