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When a liquid is heated the temperature stops rising at the liquids what?
Stefan9131
boiling point
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∙ 14y ago
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Why do hot liquids rise in convection?
Hot liquid is less dense. After it has released heat at the top it is more dense. Its a continious cycle of rising and falling.
Why is that when a pure liquid is boiled its temperature remain constant?
The energy/heat being added to the liquid is used to convert the liquid into a gaseous state, rather than to heat the liquid (you get something similar when you melt ice). Once a gas, the temperature of the substance will start rising further if heat continues to be applied.
What is convection in liquid?
The convection is a current caused by warmer liquid rising and cooler liquid sinking.
How does convection of heat take place in liquids and gases?
The molecules get heated up ,gain energy and move to a new location thus transmitting heat from one part of the liquid to another.Similar things occur in gases. In the place being heated, the particles move more quickly because the heat energy is converted into kinetic energy in the particles. Faster moving particles collide more often and with more force and so they spread out, becoming less dense. Less dense fluids float on denser fluids so the heated particles start to rise. This has two effects. Firstly, denser, colder liquid cones in to replace the risen fluid, which can also be heated and rise. Also, the hotter, risen and more energetic particles start to transfer some of their energy to the colder fluid around them. This sets up a CONVECTION CURRENT of fluid rising where it is heated, spreading out at the top and falling back down in the colder parts of the fluid. and moving along the bottom to replace the rising warmed fluid. This carries the heat to the whole of the fluid.
What is The rising of hot air or liquid and failing of cold air or liquid called is?
The word "convection" is often used in this context.
When a liquid is heated the temperature stops rising at the liquids?
boiling point
Rising film evaporator?
Rising Film EvaporatorIn a Rising Film Evaporator liquid feed enters from the bottom of steam heated tubes. The parallel movement of liquid and vapour along tube surface imparts effective water evaporation from the liquid feed. This type of evaporator is ideal for liquids which attain high viscosity or have fouling tendency.
What is the definition Rising and falling of heated gas?
where the temperature is dropping or increasing! Edit: Convection is the rising and falling of heated gas.
What happen to the temperature when the water is heated?
When water is heated, the temperature increases until the boiling point. During the transition from liquid water to gaseous water (steam), the temperature does not change, and the the temperature rises again.
When water is heated steadily its temperature will stop rising when water starts to?
evaporate
What is liquid rising in a thermometer as temperature increases is an example of?
Thermal expansion.
Where does heat energy go when temperature is not rising?
During boiling all the heat supplied to the liquid is used up in overcoming the intermolecular forces present among the molecules of the liquid. That is why the temperature of the liquid does not change.
Why does liquid rise and fall when heated?
Liquid rises and falls when heated because when heated, liquid will expand causing it to be less dense than the other liquid around it. This results in a buoyant force and it will rise. After rising it will start to cool off since it isn't by the heat source anymore and will become more dense. This will make it more dense than the newly heated up liquid below it and so it will fall to repeat the process.
Why do hot liquids rise in convection?
Hot liquid is less dense. After it has released heat at the top it is more dense. Its a continious cycle of rising and falling.
What is the effect of the temperature on the flow rate and the viscosity of a liquid?
HSP With increase in temp.the viscosity of liquids decreases,thereby increasing the flow rate and vice versa.The decrease in viscosity with rising temp.is due to the fact that the intermolecular attraction decreases and the cohesive forces increases. This does not apply with water
Why it is that when a pure liquid is boiling its temperature remain constant?
The energy/heat being added to the liquid is used to convert the liquid into a gaseous state, rather than to heat the liquid (you get something similar when you melt ice). Once a gas, the temperature of the substance will start rising further if heat continues to be applied.
Why is that when a pure liquid is boiled its temperature remain constant?
The energy/heat being added to the liquid is used to convert the liquid into a gaseous state, rather than to heat the liquid (you get something similar when you melt ice). Once a gas, the temperature of the substance will start rising further if heat continues to be applied.
