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During a state change, such as melting or boiling, the energy being added or removed is being used to break or form intermolecular bonds rather than increase or decrease the kinetic energy of the particles. This leads to a plateau in temperature until the state change is complete.
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What happens to the thermal energy of a substance during a physical change of state?
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
Why does the temperature of ice decrease as it melts?
The temperature doesn't decrease it stays the same while it is melting. Because temperature is heat which is Kinetic Energy (KE) so when the temperature changes the KE changes. A change of state like ice to water or water to steam or vice versa is a state change or a change in potential energy (PE). They both can'y change at the same time so when the ice is melting the PE is changing and the KE is staying the same. ultimately you can have ice at 0 degrees celsius and water at 0 degrees celsius. This happens if there is the same amount of heat added during the state change as before. sources: chemistry class
Does the temperature change while a phase chage is occurring?
No, the temperature does not change during a phase change. It remains constant until all the substance has undergone the phase change.
What will not change the state of matter?
Factors such as the amount of a substance, its chemical composition, and the presence of impurities will not change its state of matter. For instance, heating or cooling a substance can change its state (e.g., solid to liquid), but simply having more or less of the same substance at the same temperature and pressure will not alter its state. Additionally, the state of matter remains unchanged as long as the temperature and pressure conditions stay constant.
What is an example of a change of state is it phy sical change?
An example of a change of state as a physical change is the melting of ice into water. This change involves a solid (ice) converting into a liquid (water) due to an increase in temperature, but the substance itself remains the same chemically.
What happens to substances temperature during a change of state?
Temperature remains constant
Does temperature change during condensation?
No, temperature remains constant during the process of condensation. As a gas cools and transitions to a liquid state, the temperature stays the same until all the gas has condensed into a liquid.
Does the temperature increase decrease or stay the same during a change of state please say which or all?
During a change of state, temperature usually stays the same. When a substance is changing from solid to liquid or liquid to gas, the energy is used to break intermolecular bonds rather than increase the temperature. This is known as the latent heat of fusion or vaporization.
What happens to a substances temperature during a phase change?
stays the same
Which stays the same when a substance switches from liquid to gas?
During the phase change, the temperature stays the same.
What does matter can change state mean?
The same substance can exist either as a solid, liquid or a gas and can change state depending on the temperature or external pressure.
What happens to the thermal energy of a substance during a physical change of state?
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
Why does the temperature of ice decrease as it melts?
The temperature doesn't decrease it stays the same while it is melting. Because temperature is heat which is Kinetic Energy (KE) so when the temperature changes the KE changes. A change of state like ice to water or water to steam or vice versa is a state change or a change in potential energy (PE). They both can'y change at the same time so when the ice is melting the PE is changing and the KE is staying the same. ultimately you can have ice at 0 degrees celsius and water at 0 degrees celsius. This happens if there is the same amount of heat added during the state change as before. sources: chemistry class
Does the temperature change while a phase chage is occurring?
No, the temperature does not change during a phase change. It remains constant until all the substance has undergone the phase change.
How can the temp of a substance remain the same if it is absorbing energy?
The temperature of a substance can remain the same while absorbing energy if it is undergoing a phase change, such as melting or boiling. During a phase change, the absorbed energy is used to break intermolecular bonds rather than increase the kinetic energy of the particles, which keeps the temperature constant.
What will not change the state of matter?
Factors such as the amount of a substance, its chemical composition, and the presence of impurities will not change its state of matter. For instance, heating or cooling a substance can change its state (e.g., solid to liquid), but simply having more or less of the same substance at the same temperature and pressure will not alter its state. Additionally, the state of matter remains unchanged as long as the temperature and pressure conditions stay constant.
Could a phase graph with little temperature increase and a lot of heat be the same as latent heat?
Yes. Strictly speaking there should be no temperature change during a phase change.
