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Which thermodynamic process takes place at a constant temperature so that the internal energy of a system remains unchanged?
An isothermal process takes place at a constant temperature so that the internal energy of a system remains unchanged. For ideal gases, this usually occurs under conditions where heat exchange occurs with the surroundings to maintain a constant temperature.
How is evaporation different from boiling?
Evaporation is the process of a liquid turning into a gas at a lower temperature, while boiling is the process of a liquid turning into a gas at its boiling point.
What is the boiling point of a solid?
The boiling point refers to the temperature at which a substance transitions from a liquid to a gas phase. Solids do not have a boiling point, as they transition directly from a solid to a gas through a process called sublimation.
What is the name of the process of ice melting to water?
The process of ice melting into water is called "melting." This occurs when the temperature of the ice rises above its melting point, causing the solid ice to transition into liquid water.
What is the difference between an isobaric process and an isothermal process in thermodynamics?
An isobaric process is when pressure remains constant, while an isothermal process is when temperature remains constant in thermodynamics.
Why does the temperature of a substance remain constant during it's melting point on boiling point?
Because of phase transition ie from solid to liquid during melting and from liquid to vapour during boiling. So just to change over from one phase to the other heat is totally utilized and hence no chance to have a rise in temperature. So temperature remains constant.
How may it be checked that the liquid is boiling at a constant rate?
To check if a liquid is boiling at a constant rate, observe the bubbles forming in the liquid. If the size and frequency of bubbles are consistent, it indicates a constant boiling rate. Additionally, monitoring the temperature can help ensure a steady boiling process.
Is Melting point higher than boiling points?
No, boiling points are always higher than melting points. When you turn a solid to a liquid, this process is called melting, and requires a lower temperature than boiling the substance. Take ice water for example. Ice becomes pure water at 0oC. The temperature needed to boil pure water is 100oC, which is a bigger number than zero.
What is the equation for isothermal process?
At the boiling point the energy goes into breaking the intermolecular bonds, but the average kinetic energy stays constant and so does the temperature until all of the bonds are broken and the substance is in the vapor state.
Why temperature remains constant during the process of melting or boiling?
This is because of latent heat. When a substance is being melted, heat is supplied to the solid until its melting point is reached. When the solid reaches that temperature, any additional heat energy is used - not to raise its temperature - but to cause the phase to change from solid to liquid. The amount of energy required (per unit mass) is the latent heat of melting (or freezing, when the process is reversed) for that substance. When the phase change is complete, any further heat energy supplied will, once again, go towards raising the temperature.The same thing happens at the boiling point except that this time it is the latent heat of evaporation/condensation.
What will happen to the temperature of a pot of boiling water as the water evaporates?
As water evaporates from the boiling pot,its temperature drops.This results from the fact that water molecules during evaporation extract its latent heat of vapourization from the pot, thereby exerting a cooling effect on it and its content.Regulation of body temperature by sweating is based on this principle. When sweat comes out of its pores, usually in suny days, it evaporates and in the process extract its latent heat of vapourization from the body.This causes the body temperature to decrease.In this way it keeps the body temperature fairly constant.
Why does temperature does not rise during the process of boiling and melting though heat energy is constantly supplied?
you must have observed during the experiment of melting that the temperature of the system does not change after the melting point is reached till all the ice melts this happens even though we continue to heat the breaker that is we continue to supply heat
Why is energy required for the melting or boiling process?
Energy is required in the melting process because high is needed to melt something
Is boiling the reverse of freezing?
no it is not melting is the reverse of freezing
Since the melting and freezing temperature are the same does something stay the same temperature when it is melting?
When a substance is melting, it stays at a constant temperature until all of it has melted. During this process, the energy being added is used to break the intermolecular forces holding the solid structure together, rather than raising the temperature. Therefore, the temperature remains constant until the phase change is complete.
Under what conditions heat can be given to a substance without raising its temperature?
If the substance is in solid condition and at the melting temperature, heat can be given without rising the temperature. Then the substance melts and all the heat will be used in the melting process. Also when the substance is at the boiling temperature you can add heat without rising the temperature. At that point the heat is used to vaporate the substance.
Why are the melting point and boiling point of the same matter different?
Boiling point is the temperature at which a substance turns into a gas, while melting point is the temperature at which a substance turns into a liquid state from a solid state. The boiling point is always a higher temperature then the melting point. The melting point has a substance turn into a liquid from solid, and boiling point has a liquid turn into a gas.
