What happens if hot water is used in rising water experiment?
If the temperature in the glass is high, then this can keep water in gas form and decrease the effect. Initial air escape Because initially, the water level is near the bottom, the initial heating will have a stronger effect than the depletion of oxygen and the water level drops, and air will leave the container.
What is the correct explanation of what happens to the water when the candle inside the beaker burns out?
The evaporation of the water to water vapor as the candle burns, and the cooling that occurs when the candle goes out, cause lower air pressure inside the glass than outside. The water is pushed into the glass until equilibrium is reached.) Air cools when the flame goes out.
How the candle was killed in rising water experiment?
The short candle utilizes the oxygen in this cold air and stays on for some more time. When all the oxygen is used up, the short candle also dies.
What happens when you put a cup over a candle with water?
What happens if you cover a lit candle in a water basin with a glass? The glass becomes foggy on the inside and the flame fades and eventually goes out. Then the water level in the glass rises. The burning candle produces carbon dioxide and water in the form of water vapor.
What caused the water to rise?
The two major causes of global sea level rise are thermal expansion caused by warming of the ocean (since water expands as it warms) and increased melting of land-based ice, such as glaciers and ice sheets.
How do I get my water to rise?
Place the glass over the candle. Flip the glass upside down and set it overtop of the candle. Make sure that the opening of the glass is completely submerged in the water. This provides a seal that prevents air from entering the glass and allows the water to rise into the glass.
What happens when we cover a burning candle?
By covering the candle with a glass, we will limit the amount of oxygen inside the tumbler that is left for the candle to burn. The carbon in the wax reacts with the remaining oxygen during the combustion reaction and produces carbon dioxide and heat.
Why do you think candle a burned out?
Carbon dioxide molecules are heavier than air. Because of this, they push the oxygen and other molecules in the air out of the way as they sink down over the flame and candle. When oxygen is pushed away from the wick, it can’t react with the wax anymore. This makes the flame go out.
Why does water rise in a jar 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 causes the ocean water to rise and sink?
Sinking and Rising of Water as a Function of Temperature At temperatures between freezing and 4°C, warmer waters are more dense than cooler waters (if they have the same salinity), and will therefore sink, helping to redistribute warmth downward in the ocean. Ice is approximately 9% less dense than liquid water.
How do rising sea levels affect humans?
Rising seas, rising health risks Flooding and storm surges associated with sea level rise increase risks for drowning, injury and displacement. ° Increased coastal flooding and storms also raises the risk of indoor mold growth from excess dampness, with impacts on respiratory disease.