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What is the transformation of a physical state of a substance into a different physical state?
The transformation of a physical state of a substance into a different physical state is called a phase change. An example of this is water changing from solid (ice), to a liquid (water), to a gas (steam).
What is the lowest flame temperature required for a substance to undergo combustion?
The lowest flame temperature required for a substance to undergo combustion is called the ignition temperature.
When is a substance in the gaseous phase called a vapor?
A substance is called a vapor when it is in the gaseous phase at a temperature below its critical temperature. Above this critical temperature, the substance is in the supercritical fluid phase rather than a distinct gas and vapor phases.
What is a substance or molecule that participates in a chemical reaction is called?
A substance or molecule that participates in a chemical reaction is called a reactant. Reactants are the starting materials in a chemical reaction that undergo a process of transformation to yield products.
When a substance is heated what is it called?
Thermal Decomposition
How do you make a substance without atoms?
At a sufficiently high temperature you get a substance called plasma which contains no atoms; it consists of fragments of atoms.
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 the temperature called at which a substance changes from a solid to a liquid?
The temperature at which a substance changes from a solid to a liquid is called the melting point.
The movement of thermal energy from a substance at one temperature to a substance at a different temperature is called?
heat
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.
What do you call the transformation of solid to liquid?
That transformation is called melting, when done by heat, or dissolving, when done by a solvent.
What is the temperature at which a substance change from a solid into a liquid?
This temperature is called melting point and is different for each substance or material.
What is athermal transformation?
athermal transformationThe word "Athermal" indicates that whatever happening is there it should be independent of temperature. Hence temperature independent transformation are gerenerally called as athermal transformations.
The temperature at which a substance changes from a liquid to a solid is named?
This temperature is called freezing point and is different for each substance or material.
The temperature at which a substance changes from a solid to a liquid is calleld what?
This temperature is called melting point and is different for each substance or material.
What is a temperature at which a substance changes from a liquid to gas?
The answer to this question is entirely dependent on the type of substance. This temperature is called the boiling point.
What is the temperature at which a substance changes from liquid to a gas?
The answer to this question is entirely dependent on the type of substance. This temperature is called the boiling point.
