Why does the level of water rises in the container?
The cooler air then contracts and takes up less space. The outside air pushes water into the container until the pressure is equalized both inside and outside of the container — an amazing visual on water pressure equalization! The water stops rising when that pressure equalization is reached.
Why does water rise in a glass tube?
The rise of water in a thin tube inserted in water is caused by forces of attraction between the molecules of water and the glass walls and among the molecules of water themselves. The narrower the bore of the capillary tube, the higher the water rises.
What is the relationship between temperature volume and pressure?
The pressure of a given amount of gas is directly proportional to its absolute temperature, provided that the volume does not change (Amontons’s law). The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure (Charles’s law).
Is the pressure inside the glass with candle increases or decreases?
The air is heated while the glass moves downwards. It expands and escapes before the glass touches the water. If the air in the glass cools down and its volume decreases, a negative pressure is created inside the glass. The water is pressed into the glass by the greater external air pressure.
Why does water rise in a glass with a candle?
The physical aspect: the candle heats the air and expands it. This cancels the depletion of the oxygen temporarily and the water level stays down. When the oxygen is depleted, the candle goes out and the air cools. The volume of the air decreases and the water rises.
What happens when you put a jar over a candle?
Putting the jar over the candle keeps oxygen from outside the jar from getting in. So, when that oxygen is used up, the reaction can’t keep going. Running out of oxygen makes the flame go out.
What happens to the colored water when you put the glass on top of the candle?
When a glass is placed over a burning candle in a plate of water, the water level rises significantly when the candle burns out. The air pressure outside of the glass remains the same. This creates an air pressure differential of greater outside air pressure, which results in the water rising in the glass.