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Why do changes of state happen at a constant temperature?
It takes energy to alter temperature, and it also takes energy to change state, at least in the direction of more energetic states, which is to say, to melt a solid or to vaporize a liquid. If energy is being consumed by the change of state itself, then there is no energy available to change the temperature. So the temperature remains constant. In practice, this means for example that things boil at the boiling point. Boiling water is always exactly 100o Celsius. It can get no hotter until it is all boiled. The steam, of course, can then get hotter.
How is a physical change from solid state to the liquid state caused?
A physical change from solid to liquid state is caused by an increase in temperature, which provides enough energy to overcome the forces holding the solid particles together. This causes the solid particles to gain enough kinetic energy to break free from their fixed positions and move more freely, resulting in the transition to a liquid state.
What has the more heat energy at 100 degrees Celsius water or steam?
steam. It has to go through a phase change, which takes additional energy to get there.
Can heat energy change a gas to other state?
Yes, heat energy can change a gas to another state. When a gas absorbs enough heat energy, it can transition to a liquid state through a process called condensation. If even more heat energy is added, the liquid can further transform into a solid state through freezing.
Which involves more energy a chemical change or a phase change?
A chemical change typically involves more energy than a phase change because it involves breaking and forming chemical bonds, which requires more energy than changing the arrangement of molecules in a substance during a phase change. Additionally, chemical changes often involve a change in temperature as well.
Does it take more energy to heat cold water to 212 F than it does to change 212 F water to steam?
Yes, it takes more energy to heat cold water to 212°F because you need to increase the temperature of the water. Once the water reaches 212°F, it requires more energy to convert it to steam because you need to overcome the latent heat of vaporization to change its state from liquid to gas.
How does state of matter relate to temperature?
States of matter could be said to be Solid Liquid and Gas. As a substance transits or passes through these states of matter then the amount of energy increases. It takes energy to separate the particles and break bonds as the substance goes from Solid to Liquid and then more inter-particular bonds must be broken to form the Liquid. Temperature does not change during the change of state as the energy is absorbed by the bonds. Temperature continues to increase once the new state is formed.
How Does Thermal Energy Cause Change?
Thermal energy can cause changes in materials by either heating or cooling them. Heating can expand materials, change their physical state (e.g. melting), or initiate chemical reactions. Cooling can contract materials, change their physical state (e.g. freezing), or slow down reactions. Thermal energy essentially provides the energy needed for these changes to occur.
Can the state of matter change when you add or take away energy?
Yes, particularly if you add thermal energy. At its least energetic, matter is in the solid state. Add some more energy, it transitions to the liquid state. Then more and it's a gas. Finally, at its most energetic, it is in the plasma state.
If atoms energy during a change of state they are pulled together by attractive forces and become more organized.?
During a change of state, the atoms or molecules typically experience an increase in energy which allows them to overcome the attractive forces that hold them together in their current state. This increased energy allows the particles to transition to a new state with greater disorder or randomness.
When combustion takes place do the products have more energy then the reactants?
yes they have more energy
What energy change takes place when two atoms form a covalent bond?
When two atoms form a covalent bond, potential energy is converted into a more stable form of energy known as bond energy. This process releases energy, making the system more stable.
