0
What happens to the thermal energy of a substance during a physical change of state?
Wiki User
∙ 13y ago
it will increase or decrease depending on the states.
from solid --> liquid or liquid --> gas it is positive and endothermic, and thermal energy is increasing
from liquid --> solid or gas --> liquid it is negative and exothermic, and thermal energy is decreasing
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoIt depends on what state it will turn. The thermal energy will be constant during the change of state because the energy its using will remain at the substance.
Wiki User
∙ 8y agoThe thermal energy changes but the temperature remains the same. All of the energy guess into changing state and not into changing the temperature.
Wiki User
∙ 8y agoThe temperature remain constant.
Add your answer:
Earn +20 pts
What kind of change happens when the composition of a substance does not change?
Physical changes, such as the change from ice to water to steam; the compound remains as H2O in all three states.
What happens to a substance in physical change?
it means figure it out yourself!
What happens to particle size when a substance undergoes physical change?
It enlarges
What is the meaning of Physical Change What is the meaning of Chemical Change?
PHYSICAL CHANGE - refers to the change in size, shape, or state of matter. CHEMICAL CHANGE - happens when one chemical substance is transformed into one or more different substance, such as iron becomes rust.
Is it a physical or chemical change when a substance changes form but it remains the same substance?
it would be physical change because physical change is when the substance stays the same
What kind of change happens when the composition of a substance does not change?
Physical changes, such as the change from ice to water to steam; the compound remains as H2O in all three states.
How is the thermal energy of a substance related to it physical state?
The thermal energy of a substance determines its state, since thermal energy, aka internal energy, is the energy the molecules in the substance have. If the energy exceeds the force holding the substance together the substance undergoes a phase change.The physical state of a substance is related to its temperature, the measure of thermal energy. The substance can change states depending on the temperature, e.g. boiling.
How is thermal energy of a substances related to its physical state?
The thermal energy of a substance determines its state, since thermal energy, aka internal energy, is the energy the molecules in the substance have. If the energy exceeds the force holding the substance together the substance undergoes a phase change.The physical state of a substance is related to its temperature, the measure of thermal energy. The substance can change states depending on the temperature, e.g. boiling.
What happens when you take the heat away from a substance?
Physical change
What happens to a substance in physical change?
it means figure it out yourself!
What kind of change happens when a substance dissolves?
I want to say physical change
What happens When a substance goes through a physical change?
The Substances die
What happens to particle size when a substance undergoes physical change?
It enlarges
What happens to the identity of a substance when it makes a physical change?
there is to types of change to a substance chemical and physical in a physical change the result is a mixture also most times you can change your end result into what you started with e.g.freeze-melt evaporate-condesate
Change 3 explain what happens to the identity of a substance in a physical change 4- explain what causes a substance to change from one state to another 5- explan what happens to particle size?
== ==
How is the thermal energy of a substance related to its state?
The thermal energy of a substance determines its state, since thermal energy, aka internal energy, is the energy the molecules in the substance have. If the energy exceeds the force holding the substance together the substance undergoes a phase change.The physical state of a substance is related to its temperature, the measure of thermal energy. The substance can change states depending on the temperature, e.g. boiling.
How is a physical change related to a substance physical properties?
a physical change is a change in any physical property of a substance, not in the substance itself
