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What happens to the kinetic energy of a substance while undergoing a phase change?
It depends on what phase change they are undergoing. If it were going from a solid to a liquid, then the kinetic energy would be greater. Same as if it were going from a liquid to a gas. However, if it were going from a liquid to a solid (or a gas to a liquid), then the kinetic energy would decrease.
What else can I help you with?
True or false When frozen water melts it is undergoing a physical change?
Actually it is undergoing a crappy change.
Can a physical change change what a substance is?
a physical change will only alter the appearance but will NOT change the substance to another substance =)
What happens when a substance goes directly from a solid state to a gas state as dry ice does?
It's called sublimation. Its undergoing a phase change. -APEX:)
What change forms a new substance?
compound
What is a change that alters the form or appearance of a substance but does not make it into other substance?
It is considered a physical change. A chemical change involves chemical reactions that change the substance into another substance. A physical change typically only modifies the form or phase.
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.
When a substance is undergoing a chance of state the temperature of the substance does not change until the?
change is complete
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.
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).
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.
Substance that speeds up a chemical reaction without undergoing a permanent change -?
Catalyst
What does thermochromatic mean?
it refers to a substance undergoing a reversible change of colour when heated or cooled
What happens to kinetic energy of the particles of a substance as the substance changes from a liquid to a gas?
The faster the molecules of a substance are moving, the warmer that substance is, because temperature is really a measurement of the average kinetic energy of the molecules in a substance or object. For a substance to evaporate, or change from a liquid to a gas, it has to become warmer. That means that the kinetic energy of the molecules increases.
How do you identify the change of state a substance is undergoing?
through it's boiling, melting, and freezing point.
What happens to a substance when you remove kinetic energy?
When you remove kinetic energy from a substance, its particles slow down. If enough kinetic energy is removed, the substance may transition from a gas to a liquid or a solid, depending on the substance.
How does a substance 's temperature change when the average kinetic energy of it's particle increases?
As the average kinetic energy of the particles in a substance increases, the temperature of the substance also increases. This is because temperature is a measure of the average kinetic energy of the particles in a substance. So, when the average kinetic energy increases, the temperature increases as well.
What happens to a substance's temperature as it god through the change of state?
During a change of state, the temperature of a substance remains constant. This is because the energy being added or removed is used to break or form intermolecular bonds rather than increase or decrease the substance's kinetic energy.
