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When a substance is undergoing change of state the temperature of the substance does not change until the is complete?
During a change of state, such as melting or boiling, the temperature of the substance remains constant because the heat energy is being used to break intermolecular forces rather than increase the kinetic energy of the particles. Once the change of state is complete, the temperature will start to rise again as thermal energy is being used to increase kinetic energy.
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How is the kinetic energy of the particles of a substance affected when undergoing a phase change?
During a phase change, the kinetic energy of particles remains constant. This energy is used to break or form intermolecular bonds, causing the substance to change from one phase to another without a change in temperature.
A substance that speeds up a chemical reaction without undergoing a permanent change itself is?
A substance that speeds up a chemical reaction without undergoing a permanent change itself is called a catalyst. Catalysts work by providing an alternative pathway for the reaction to occur, thereby lowering the activation energy needed for the reaction to proceed. Once the reaction is complete, the catalyst remains unchanged and available to facilitate more reactions.
What happens to a substances temperature during a phase change?
stays the same
True or false the temperature of a substance changes during a change in state?
False. The temperature of a substance remains constant during a change in state until all of the substance has completed the phase change.
What does the flat portion of the temperature time graph in the experiment of melting point indicates?
The flat portion of the temperature-time graph during the melting point experiment indicates that the substance is undergoing a phase change. As heat is being absorbed to break the intermolecular bonds and transform the solid into a liquid, the temperature remains constant until all of the substance has melted.
When a substance is undergoing a chance of state the temperature of the substance does not change until the?
change is complete
Does the temperature of a substance change before the change of state is complete?
No. During a phase change the temperature is constant until the phase change is complete.
How can the temperature of a substance remain the same even if the substance is absorbing thermal enerrgy?
The temperature of a substance can remain the same during absorbing thermal energy if the substance is undergoing a phase change, such as melting or boiling. During a phase change, the absorbed thermal energy goes into breaking intermolecular bonds rather than increasing the temperature. Once the phase change is complete, the temperature will resume rising as the substance absorbs more thermal energy.
Does the temperature of a substance changes before the change of state is completed?
No. During a phase change the temperature is constant until the phase change is complete.
As heat is added to a substance undergoing a phase change the temperature remains constant because the energy is being used to?
break intermolecular bonds and change the phase of the substance rather than increase the kinetic energy of the particles (temperature).
Why the temperature remain constant altough heat is absorbed from surrounding?
That will not happen unless matter is undergoing a phase change and the temperature you are measuring is that of the matter undergoing the phase change.
How is the kinetic energy of the particles of a substance affected when undergoing a phase change?
During a phase change, the kinetic energy of particles remains constant. This energy is used to break or form intermolecular bonds, causing the substance to change from one phase to another without a change in temperature.
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.
A substance that speeds up a chemical reaction without undergoing a permanent change itself is?
A substance that speeds up a chemical reaction without undergoing a permanent change itself is called a catalyst. Catalysts work by providing an alternative pathway for the reaction to occur, thereby lowering the activation energy needed for the reaction to proceed. Once the reaction is complete, the catalyst remains unchanged and available to facilitate more reactions.
What properties of a substance does not change when the amount of the substance changes 1 mass 2 volume 3 temperature?
The mass of a substance does not change when the amount of the substance changes. The temperature of a substance does not change when the amount of the substance changes. However, the volume of a substance may change when the amount of the substance changes, depending on the conditions.
What is happening to a substance undergoing heat of fusion?
During the heat of fusion, a substance is transitioning from a solid phase to a liquid phase. The heat energy is being absorbed by the substance, causing the particles to break free from their fixed positions and begin to move more freely. This results in a change in the physical state of the substance without a change in temperature.
Substance that speeds up a chemical reaction without undergoing a permanent change -?
Catalyst
