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Does a pure substance always boil at a fixed temperature?
Yes, a pure substance boils at a fixed temperature under a specific pressure. This boiling point is characteristic of the substance and remains constant as long as the pressure is maintained. However, if impurities are present or if the pressure changes, the boiling point can vary.
Is it true that boiling point of a liquid remains constant in all altitudes?
No. The higher the altitude the more difficult, and fuel expensive, to boil water.
Why does the temperature remain constant when it boils?
A substance has different phases, but it only boils at a certain temperature. If it is over that temperature it will evaporate or if it is under that temperature it won't boil.
What is the substance if it dissolves in water and boil at a constant temperature?
The substance you are describing is likely a solute that forms a solution with water, exhibiting a boiling point elevation due to its presence. This means that when dissolved, the solution will boil at a higher temperature than pure water, but will maintain a constant boiling point for a given concentration. Common examples include salts and sugars. The constant boiling point indicates that the solution is in equilibrium, with the solute affecting the physical properties of the solvent.
What happen to the temperature boiling water as it's boil?
When water is boiling, the temperature remains constant, as the energy it is absorbing is being used to change the liquid water into water vapor.
Does pure liquid boils at fixed temperature at a given pressure?
Yes, a pure liquid will generally boil at a fixed temperature at a given pressure. This temperature is known as the boiling point, and it remains constant as long as the pressure is constant.
What are Boiling points and freezing points examples of?
boiling points are when a substance starts to boil. example- water 32degrees F A boiling point is when a liquid evaporates to form a gas. freezing points are when a substance starts to freeze. example- water 212degrees F A liquid freezes to a solid below its freezing point.
What happenes to the temperature of a material when it changes state?
When a material changes state, its temperature remains constant until the entire phase transition is complete. For example, when ice melts into water, the temperature stays at 0 degrees Celsius until all the ice has turned into water. Conversely, when water vapor condenses into liquid water, the temperature remains constant until all the vapor has transformed into liquid.
Why does the amount of water affect time it takes to boil?
The basic formula which describes the energy required to raise the temperature of a substance is ΔE=mcΔθ. where: ΔE = Difference in energy m = mass of the substance c = specific heat capacity of the substance Δθ = change in thermodynamic temperature without any calculation, it is clear that if the change in temperature is the same (i.e. from room temperature to boiling point); and the specific heat capacity is the same; the more of the substance that is being boiled; the more energy is required. If the device which is boiling the substance is at a constant power, whether it be a burner or a kettle, the more energy required to boil the substance, the more time it will take to boil so long as the power is held constant.
How you would determine that the distilleate collected is a pure substance?
Pure Substances Boil at a Constant Temperature while Mixtures do not, To determine if the Distillate is pure the Liquid distillate would be boiled and for example if the substance is water, it should begin boiling at exactly at 100 degrees celcius if it boils below or above that point it is not a pure substance
When water reaches a boil the temperature remains constant the temperature continues to rise the kinetic energy will drop the kinetic energy will continue to rise?
When water reaches a boil, its temperature remains constant at 100 degrees Celsius until all the water has evaporated. During this phase change, the kinetic energy increases to break the intermolecular bonds holding the water molecules together. Once all the water has evaporated, the temperature will start to rise again as the kinetic energy of the water molecules increases further.
What causes a substance to boil or freeze?
hot or cold air
