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What is meant by reversible and irreversible action?
Reversible action refers to a process that can be undone or reversed, returning to the original state without any permanent changes. Irreversible action, on the other hand, signifies a process that cannot be undone, resulting in permanent changes or consequences.
What happens to different material when they undergo those changes?
When materials undergo changes like melting, freezing, boiling, or evaporating, their physical properties such as state (solid, liquid, gas) and shape may change. For example, melting involves the solid material turning into a liquid, while boiling results in a liquid turning into a gas. These changes are reversible and do not alter the chemical composition of the material.
Everyday physical reactions?
Everyday physical reactions could include sweating when it's hot, shivering when it's cold, blinking to protect the eyes, and feeling hungry when blood sugar drops. These are automatic responses that help regulate body temperature, protect the body, and signal the need for nourishment.
What are the difference between freezing point and boiling point?
The freezing point is the temperature at which a liquid turns into a solid, while the boiling point is the temperature at which a liquid turns into a gas. The freezing point is typically lower than the boiling point for a substance.
How does distillation separate a mixture of differant liquids?
We can separate a mixture of different liquids in the process of distillation by evaporating and condensing to make sure nothing is dissolved in it. Distillation as a separation method is based on the differences between boiling points of liquids.
What is meant by reversible and irreversible action?
Reversible action refers to a process that can be undone or reversed, returning to the original state without any permanent changes. Irreversible action, on the other hand, signifies a process that cannot be undone, resulting in permanent changes or consequences.
Is freezing water a physical or chemical change?
Freezing (melting, boiling, condensing) are always phycal changes (of matter)
Give 5 examples of a reversible change?
Melting wax Melting ice freazing water Evaporating the water Cooling the steam
When boiling take place is the phase change a chemical or phsical change?
It is a physical change, the substance stay the same elements before and after the change, this is the same for all states of matter changes (melting, freezing, evaporating, condensing, and sublamation)
Is melting of ice a physical process?
Yes, changes of state (melting, boiling, freezing, condensing) are physical processes.
What is an example of liquid to gas phase change equilibrium?
Water boiling to become steam is an example of a liquid to gas phase change.
What is freezing melting condensing evaporating boiling and vaporizing?
Freezing and melting are related. Freezing is going from a liquid to a solid, and melting is going from a solid to a liquid. The energy used for this phase change is called heat of fusion. Condensing and vaporizing are also related in a similar way. Condensing is going from a gas to a liquid and vaporization is going from a liquid to a gas. The energy used for this phase change is called heat of vaporization. Evaporation and boiling are similar. Both refer to the change of a liquid to a gas, but evaporation takes place on the surface of the liquid, and boiling takes place on the entire mass of the liquid.
What are the Changes of state?
There are three main states that a substance can exist as: solid, liquid and gas. The transition between these states occur when a substance is heated or cooled past their freezing/melting or boiling/condensing points. Solid -> Liquid = Melting Liquid -> Gas = Boiling Gas -> Liquid = Condensing Liquid -> Solid = Freezing
Examples of reversible changes?
1. Three phases of water 2. Solidification of Ghee 3. Melted chocolate. 4. Salty water to salt by evaporation. 5. Orange juice to ice lollies by freezing 6. Groundwater to Dirty water 7. Seed to plant Hemambigai.C.,
Which change of state is the opposite of boiling?
the melting point Melting is the opposite of freezing. Condensation is the opposite of boiling.
What happens to different material when they undergo those changes?
When materials undergo changes like melting, freezing, boiling, or evaporating, their physical properties such as state (solid, liquid, gas) and shape may change. For example, melting involves the solid material turning into a liquid, while boiling results in a liquid turning into a gas. These changes are reversible and do not alter the chemical composition of the material.
What are some examples non reversible changes?
1.Melting is an example of a reversible change. For example melted chocolate can be changed back into Solid chocolate by cooling.2. Freezing is an example of a reversible change. For example we can freeze orange juice to ice lollies . The ice lollies can be changed back into orange juice by heating.3.Boiling,Evaporating and Condensing for example. If you capture all the steam that is made when a kettle boils , you could turn it back by cooling it
