0
To clarify a point - a gas is more soluble in cold water than in hot water.
I can only surmise that cold water is used in the process of gas collection by downward displacement of water due to the lower vapor pressure of water at the lower temperature - compared to normal room temperature. This would have the effect of collecting drier gas in the collecting cylinder.
What else can I help you with?
Why do hot beakers crack in cold wale?
im assuming you meant to type water... this happens because heat makes things expand, whilst cold makes things contract. by putting a hot beaker in cold water, you put too much strain on the beaker because it is changing size so fast
Why do water droplets form outside the bottle?
Condensation - The surface of the bottle and the air just above it will be cool enough to allow condensation of the water vapor in the air onto the bottle's surface.
How can you prove hot and cold are relative term?
"Cold" and "hot" are the terms of describing temperature difference between two systems. To prove this, perform two trials in an experiment. If it is cold outside, do a trial with cold water from a faucet, spend some time outside, return to the faucet and then turn the cold water on again. Your findings will be that by changing your body's external temperature, you can feel the cold water that kept its temperature constant as relatively cold or warm. ________________________________________________________________ cold and hot are totallly relative term. it jst can be seen very much easily by a simple exp. jst take two beakers of water and in one put hot water nd in other put cold one. dip ur hands in it fr sme time n take ur hands out. you will notice dat your hand which was in hot beaker will feel cold sensation were as in other hand it will have hot sensation. here we can think the room temperature to be a critical point. so the hands being in cold beaker was having temperature lower were as in other it was viceversa.
Why are the freezing hypothermia experiments carried out on prisoners?
In WWII Germany and Japan both needed to know the survivability of downed pilots in cold water. It must be said that the German experiments were well documented. Should you wish to be better informed regarding the Japanese experiments, then you should look up Unit 731 on a search engine.
Are molecules in hot water different then molecules in cold water?
If you have the same volume of both then there are in cold water more molecules.
Why is tube A placed in a beaker with iced water?
Tube A is placed in a beaker with iced water to cool down the contents of the tube quickly. This is useful for experiments where rapid cooling is needed, such as to stop a reaction or to preserve the sample. The cold temperature of the iced water helps to dissipate heat from the tube effectively.
How is water droplets formed in the inner most surface of the beaker?
Water droplets form on the inner surface of a beaker when the water vapor in the air comes into contact with a cold surface, causing it to condense into liquid water. This occurs due to the temperature difference between the cold surface of the beaker and the surrounding air.
What occurs when the flame is dashed across the beaker of cold water?
When a flame is dashed across a beaker of cold water, the sudden cooling causes the air inside the beaker to contract rapidly, creating lower pressure. This can lead to the water being drawn up into the beaker due to the reduced pressure inside.
Where does the ice come from on the outside of the beaker?
The ice forms on the outside of the beaker when the cold content inside the beaker cools down the surrounding air, causing moisture in the air to condense and freeze on the outside of the beaker. This process is similar to how dew forms on grass in the early morning.
Would condensation form on the outside of a beaker full of hot water why or why not?
Yes, condensation could form on the outside of a beaker full of hot water if the surrounding air is cool enough to cause the water vapor in the air to condense on the cooler surface of the beaker. This is similar to how condensation forms on a cold glass of water on a warm day.
What collects on the outside of the beaker if you place a 5 ml water and few ice cubes in the beaker?
Condensation will collect on the outside of the beaker when you put a 5 ml of water and ice cubes inside due to the temperature difference between the cold contents inside the beaker and the warmer air outside. This causes water vapor in the air to condense, forming droplets on the exterior surface of the beaker.
A potato cube is placed in a beaker filled with hot salt water and another potato cube is placed in a beaker filled with cold salt water?
The hot saltwater will cause the potato cube to absorb the water due to osmosis, while the cold saltwater will cause the potato cube to release water. The difference in temperature affects the rate of osmosis – higher temperatures increase the rate, while colder temperatures decrease it.
Why does ice form on the outside of a beaker containing dry ice?
The air around the beaker is cooled by the intense cold of the dry ice, causing water vapor in the air to condense and freeze on the surface of the beaker. This results in the formation of ice on the outside of the beaker.
How is heat being transfered when you place your finger in the cold beaker why?
If the beaker has a cold water, or something else cold, in it than the heat that is in our finger will run out of you finger into the cold water. This leaves your finger 'empty' of heat, giving you the sensation of being cold. You need to remember that only heat moves. When you are cold you wear a jumper that keeps the heat in your body, not keep the cool out.
Why do hot beakers crack in cold wale?
im assuming you meant to type water... this happens because heat makes things expand, whilst cold makes things contract. by putting a hot beaker in cold water, you put too much strain on the beaker because it is changing size so fast
How do you prove that water vapour is present in the air by using only a beaker and several ice cubes?
Place the ice cubes in the beaker and wait for a few minutes. If water droplets form on the outside of the beaker, it indicates that water vapor in the air has condensed on the cold surface of the beaker. This condensation process proves the presence of water vapor in the air.
Why the glass beaker breaks when cold water is sprinkled on it?
When cold water is added to a hot glass beaker, the sudden temperature change causes thermal stress in the glass. This stress leads to uneven contraction and expansion of different parts of the glass, resulting in the glass beaker shattering due to the internal pressure that builds up within the glass.
