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A change from gas to liquid, from solid to liquid, from liquid to gas, etc.
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∙ 12y ago
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When a substance under goes a physical change its?
The classical example is water with 3 phases: solid, liquid, gas. The transition is called change of phase
What is a substance when it under goes a physical change?
The classical example is water with 3 phases: solid, liquid, gas. The transition is called change of phase.
When is a substance in the gaseous phase called a vapor?
when a substance exists as a liquid or solid under ordinary conditions its gaseous phase is called a vapor
What is the normal melting point?
It is the temperature at which a substance, under normal atmospheric pressure changes from the solid phase to the liquid phase.
What does a phase diagram provide?
"A phase diagram is a graph of pressure versus temperature that shows in which phase a substance exists under different condition of temperature and pressure" -Glencoe Chemistry Book
What is a graph that shows the different states of a substance according to the temperature and pressure it is under?
Phase Diagram
When does the energy of water increase?
The energy of water can increase if it is heated up, if it is placed under more pressure, if it changes phase, or if it flows faster. In phase change, increase of water's energy happens from: solid phase to liquid phase (melting), from solid phase to vapor phase (sublimation), and from liquid phase to vapor phase (evaporation). Increase in altitude also increases its potential energy.
When a substance exists as a liquid or solid under ordinary conditions its gas phase is called a?
It's called sublimination
What is the physical effect of heat?
Heating a substance usually makes it expand Heating a substance can make it change state (solid to liquid, liquid to gas, gas to plasma) Heating a substance can make it emit light at shorter wavelengths Heating a substance can make it more malleable.
What happens when a solid sublimes?
When ice sublimes, the molecules at the edge of the ice escape into the gas phase as water vapor. The solid phase thus turns directly into the gas phase without an intermediary liquid phase. Ice sublimes quite slowly under normal conditions, but dry ice (solid carbon dioxide) sublimes readily at everyday temperatures and pressures.
What is it called when a substance under goes a chemical change?
A chemical reaction occur.
Does ripening of papaya under a physical change or chemical change?
yes it is a physical change because physical change means change in which no new substance is formed. so when a mango is ripen there is no new substance formed thus it is a physical change
