Question

Do the following activity and fill up the columns given below:

Aim: To show that air expands on heating and contracts on

cooling

Materials required: a balloon, 1 litre water bottle, a bowl of hot

water and a bottle of cold water.
Procedure:

1. Fix a slightly inflated balloon to the mouth of the 1 litre

bottle.

2. Place the bottle with the balloon into the bowl of hot water.

Observe the change.

3. Place the bottle with the balloon into the bowl of cold

water. Observe the change.

After observing fill the below details.

Observation:

Reason:

Conclusion:


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Answer 1

Explanation:

observation:

We observe that the size of ballon expands after we put the bottle in the bowl of the hot water.

And the size of the ballon sightly decreases after some time we put it into the bowl of cold water.

Reason:

The size of the ballon increases because the molecules of the gas get farther away from each other and gain high kinetic energy.

The size of the ballon decresaes because the molecules get close to each other. Because under low temperature.

Conculsion:

We conclude that the molecules of gas get farther away or came close depends upon the temperature of the surroundings.

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Answer 2

Answer:

See below

Explanation:observation:

We observe that the size of ballon expands after we put the bottle in the bowl of the hot water.

And the size of the ballon sightly decreases after some time we put it into the bowl of cold water.

Reason:

The size of the ballon increases because the molecules of the gas get farther away from each other and gain high kinetic energy.

The size of the ballon decresaes because the molecules get close to each other. Because under low temperature.

Conculsion:

We conclude that the molecules of gas get farther away or came close depends upon the temperature of the surroundings.

Please mark me as the Brainlist.