2 thoughts on “(a) Why does the balloon blow up when the<br />bottle is kept in hot water?<br />Но”
Answer:
When you stretch the balloon over the opening of the bottle, all of the air is trapped inside. Putting the bottle in hot water causes the air molecules inside to heat up and begin taking up more space (thermal expansion), causing air to enter the balloon and inflate it.
When you put the bottle with the balloon into the first jar, the hot water heats up the air in the bottle and makes it expand. (Gases always expand when they’re warm – the heat gives the gas energy to spread out more). The expanding gas blows up the balloon.
Answer:
When you stretch the balloon over the opening of the bottle, all of the air is trapped inside. Putting the bottle in hot water causes the air molecules inside to heat up and begin taking up more space (thermal expansion), causing air to enter the balloon and inflate it.
Answer:
When you put the bottle with the balloon into the first jar, the hot water heats up the air in the bottle and makes it expand. (Gases always expand when they’re warm – the heat gives the gas energy to spread out more). The expanding gas blows up the balloon.