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For example, to melt ice, you need to add heat energy. To freeze liquid water (to turn it back into ice), you have to remove heat energy.
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∙ 10y ago
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What happens to temperature as energy is added to a substance that is changing state?
The temperature remain constant during the phase changing.
What energy is involved in ice changing to liguid?
Thermal energy, melting of ice is a physical change of phase.
What energy is required to create a phase change without changing the temperature?
It is called the latent heat of vaporisation.
What phase change mean?
changes from one state to another without a change in chemical composition
What happens to the temperatures of a substance while it is changing state?
It can lose or gain energy or it forms the attractions between particles.
What is the process of changing a liquid to solid?
This is freezing. Liquid to solid is a change of phase.
When heat is added to a liquid at the boiling temperature it converts the liquid into a gas at the same temperature because?
The additional heat, called "enthalpy" completes the phase change, by changing the arrangement of the molecules in the existing environment, not the temperature. The energy must be removed from a gas to cause condensation into liquid, and from a liquid to cause solidification (freezing). Conversely, it is added when changing a solid to a liquid or a liquid to a gas. At a certain temperature (critical temperature), the process happens spontaneously because the phase boundary disappears.
What is flash gas?
Flash gas is state of phase of a liquid changing into Gas, at fast or faster or fastest rate. This happens mostly in case or organic volatile compounds including Refrigerant. This phase transition is accompanied by release of energy (heat). (any phase transition requires "heat energy" added / released.
Which phase of matter do particles have the most energy and the least energy?
Particles of matter have their least kinetic energy in the solid phase and their greatest kinetic energy in the gas phase.
What does the energy obtained from the sun do to the water molecules?
It heats them, sometimes driving a phase change, sometimes just driving convection currents. In the upper atmosphere, energetic UV from the Sun will actually break them apart.
What is the difference between energy investment phase and energy payoff phase?
hy
What happens to a substance during chenges between solid and liguid?
Substances changing between soild and liquid undergo Phase Transition and solids absorb energy at constasnt tempertature to phase change solids to liquid. The reverse happens when the liquid turns to solid, energy is given off.
