define change of state give two example of change of state how can the physical state of matter is changed
Answers
change of state means change in the physical appearance of any obhect. for ex Water changes it liquid state to solid state to make ice. another .example is the change of water from its liquid state into gaseous state.
the physical state of any matter is change by change in its atoms
Answer:
What Are Changes of State?
The water droplets of fog form from water vapor in the air. Fog disappears when the water droplets change back to water vapor. These changes are examples of changes of state. A change of state occurs whenever matter changes from one state to another. Common states of matter on Earth are solid, liquid, and gas. Matter may change back and forth between any two of these states.
Changes of state are physical changes in matter. They are reversible changes that do not change matter’s chemical makeup or chemical properties. For example, when fog changes to water vapor, it is still water and can change back to liquid water again.
Processes that Cause Changes of State
Several processes are involved in common changes of state. They include melting, freezing, sublimation, deposition, condensation, and evaporation. The Figure below shows how matter changes in each of these processes.
Phase transitions between solid, liquid, and gas
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