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How can you add heat to a substance without raising its temperature?
One way to add heat to a substance without raising its temperature is by changing its state of matter. This process, known as phase change, involves adding heat energy to a substance to change it from a solid to a liquid or from a liquid to a gas. During this phase change, the temperature of the substance remains constant until the phase change is complete.
What does it mean when there is physical change?
A physical change is one where no new substance is produced. Melting is an example of a physical change. When you melt iron, you get liquid iron, it's still the same chemical substance. If you melt copper, you get liquid copper, not liquid iron.
The amount of energy involved in melting a substance without changing its temperature is called the?
It is called the enthalpy of fusion of a substance, also known as (latent) heat of fusion.
What is heat transfer that does not cause a temperature change?
Heat transfer that does not cause a temperature change is called latent heat transfer. This occurs when heat is absorbed or released during a change in state (solid to liquid, liquid to gas) without changing the temperature of the substance.
Which type of energry is being transferreed during phase change?
During a phase change, the energy being transferred is primarily in the form of latent heat. This is the energy required to change the state of a substance (such as from solid to liquid or liquid to gas) without changing its temperature.
In which phase change does a substance change from a solid to a gas or vapor without changing to a liquid first?
Corn, corn is always the answer.
What is the energy required to change a substance from a solid to a liquid WITHOUT changing it's temperature?
magic of coarse!
Is a change that alters the form of a substance without changing it into another substance is called what?
A change that alters the form of a substance without changing it into another substance is called a physical change. This type of change does not involve a change in the chemical composition of the substance, only its physical appearance. Examples include changes in state (solid to liquid) or changes in shape (cutting or crushing).
Is boiling does that changes as a physical or chemical?
Boiling is a physical change because the substance is changing from a liquid to a gas without changing its chemical composition.
A change that alters the substance but does not change the substance is?
A physical change.Changes between Solid, Liquid, and Gas.
How can you add heat to a substance without raising its temperature?
One way to add heat to a substance without raising its temperature is by changing its state of matter. This process, known as phase change, involves adding heat energy to a substance to change it from a solid to a liquid or from a liquid to a gas. During this phase change, the temperature of the substance remains constant until the phase change is complete.
Is liquid ammonia boiling a chemical or physical change?
Physical change.. think of it as it changing state not the substance
Is oxygen becoming liquid physical or chemical?
The change of oxygen from a gas to a liquid is a physical change, as the substance itself remains the same chemically. The physical change involves altering the state of the molecules without changing their chemical composition.
The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first is?
Sublimation is the phase change in which a substance changes from a solid to a gas or vapor without first becoming a liquid. This process occurs when the pressure and temperature conditions allow the solid to transition directly into a gas.
What does it mean when there is physical change?
A physical change is one where no new substance is produced. Melting is an example of a physical change. When you melt iron, you get liquid iron, it's still the same chemical substance. If you melt copper, you get liquid copper, not liquid iron.
How can a matter change from solid state to liquid state and reverse the process?
At a unique temperature, called the "freezing point", for each pure substance at a constant pressure, a solid form of the substance can change from solid to liquid phase by absorbing heat energy from its environment without raising the temperature of the substance, and, at the same temperature and pressure, a liquid phase of the same substance, can solidify without changing its temperature if it can transfer heat energy to the external environment.
Is freezing a physical change?
Yes, freezing is a physical change because it is a reversible process where a substance changes from a liquid to a solid state without changing its chemical composition.
