Question

Place a 400 ml beaker, half-filled with water, on a bot plate and let it reach boiling. Set the hot plate on low. Place a pinch clamp on the knot end of the balloon and place the balloon on the top of the beaker so that the pinch clamp sits inside the beaker but does not touch the water. What happens to the balloon after it has been on the beaker for 5 minutes? Explain your observation. Predict what would happen if you heated the balloon to an even higher temperature What do you think is happening on the microscopic scale (atomic level)? After heating the gas, did the density of the gas in the balloon change? Explain your answer Remove the balloon from the beaker and place it in an ice bath. Explain what happens.

Answer 1

See Explanation

Step-by-step explanation:

When the balloon is placed above the beaker as described and heating commences, the balloon inflates more. This increased inflation is due to the expansion of the gas in the balloon.

The gas expands because the molecules of gas inside the balloon receive a greater kinetic energy when the temperature was increased hence they move faster and spread out. Recall that temperature is defined as a measure of the average kinetic energy of the molecules in a body.

As the gas in the balloon is heated up, its density decreases. The more the beaker is heated the more the balloon becomes inflated.

When the balloon is removed from the beaker and placed in an ice bath, the balloon shrinks as temperature decreases. This is in conformity with Charles's law.