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change in temperature
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When a substance changes from one physical form to another you say the substance has had a what?
When a substance changes from one physical form to another, you say the substance has had a phase change or undergone a phase transition.
What causes phase change's to occur?
Phase changes occur when there is a change in temperature or pressure that affects the arrangement of particles in a substance. When a substance gains or loses energy, its particles can move farther apart or closer together, leading to a change in phase (such as melting, freezing, boiling, or condensation) as the substance transitions between solid, liquid, and gas states.
Why does an energy transfer not always result in a phase change?
An energy transfer does not always result in a phase change because the energy can be used to increase the temperature of a substance without causing it to change from one phase to another. Phase changes occur when a substance reaches a specific temperature and energy level that causes its molecular structure to rearrange, such as melting or boiling.
Heat that causes a substance to change form is called?
The heat that causes a substance to change form is called latent heat. This heat is absorbed or released during a phase change, such as melting, freezing, vaporization, or condensation, without causing a change in temperature.
How does phase change effect the mass of a substance?
A phase change does not affect the mass of a substance because mass is a constant property of matter. During a phase change, such as melting or boiling, the substance's molecular arrangement changes, but the total mass remains the same.
What is needed to change phases of matter?
To change phases of matter, you need to either add or remove energy. Increasing energy input causes a substance to change from solid to liquid to gas (melting, vaporization), while decreasing energy input causes the reverse phase changes (condensation, freezing). The temperature and pressure of the substance also play a role in determining its phase.
What is the opposite of latent heat?
The opposite of latent heat is sensible heat. Sensible heat is the heat that causes a change in temperature of a substance without a change in phase.
Sensible heat involves a change in a substance's?
Sensible heat involves a change in a substance's temperature without a change in its phase. It is the heat exchange that causes a change in the temperature of a substance but does not result in a change of state (solid, liquid, gas).
What phase change causes water to evaporate?
This phase change is called evaporation.
The phase change in which a substance changes from a gas directly to a liquid is?
this phase change is called condensation
Which is the phase change in which a substance change from a gas to liquid?
It is condensation.
What is the driving force of phase change?
The driving force of a phase change is a change in the energy state of the substance. This can be caused by a change in temperature or pressure, which alters the balance of forces between the particles in the substance, leading to a transition to a different phase.
