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Anonymous users2024-01-24The bath water evaporates and vaporizes into water vapor, which is liquefied into small water droplets when it encounters cold glass, and then liquefied into water vapor again after a period of time and floats away.
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Anonymous users2024-01-23When the hot water vapor encounters the glass at a lower temperature, it will release heat and liquefy, turning into small water droplets, making the glass blurry, and after a while, the small water droplets will absorb heat and vaporize.
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Anonymous users2024-01-22I will not repeat the change of the state of matter of water, but I would like to add that the direct cause of the blurring of the glass is that the attachment of small water droplets makes the mirror uneven, and the light is diffuse reflected Of course, the usual glass mirror is mirrored because of the flat surface
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Anonymous users2024-01-21【Answer】B
Answer analysis] test question analysis: When taking a hot bath in the bathroom, the glass mirror in the room becomes blurred, because a large amount of water vapor liquefied after encountering the colder mirror during the bath, and the mirror becomes clear after a while, because these small water droplets vaporize into water vapor. So choose B.
Test Center: This question examines the phenomenon of liquefaction and vaporization.
Comments: For this type of test, students should grasp that liquefaction is the phenomenon of a substance changing from a gaseous state to a liquid state, and vaporization is a phenomenon in which a substance changes from a liquid state to a gaseous state.
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Anonymous users2024-01-20b "The glass mirror in the room becomes blurred" - the water vapor is cold and liquefies on the mirror.
The mirror becomes clear again" - after a long time, the water on the mirror evaporates (vaporizes).
After taking a hot bath, "there seems to be vaporization in it, but it mainly plays a heating role depending on the topic."
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Anonymous users2024-01-19【Answer】D
Answer analysis] test question analysis: When taking a bath, a large amount of water evaporates, and many water vapors liquefy into small water droplets when they encounter a cold mirror, and after a period of time, the small water droplets evaporate and vaporize into water vapor, so it becomes clear again
Therefore, choose the D test point: liquefaction and liquefaction phenomenon; Characteristics of vaporization and vaporization and heat absorption Comments: This question mainly tests students' understanding and mastery of the changes in the state of matter in life, and embodies the concept of moving from physics to life
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Anonymous users2024-01-18Because of the water vapor, because it can't be emitted for a long time, it stays on the glass and becomes blurry.
B. Water vapor turns into small water droplets when it is cooled and liquefies. >>>More
It's good to rinse it with water, but it will blur again after a while, you can wipe the mirror with a towel dipped in soapy water to prevent blurring, try.
Check whether the tiles have hollow drums, each piece is knocked, and the sound is different.
This is the thermoregulatory mechanism. It was already very hot, and with the addition of a hot bath, the body temperature was too high. Nowadays, the water heater in the bathroom will not be installed indoors, and it will not be carbon monoxide poisoning.
The mature solution is to glue a special heating plate behind the glass (mirror) to heat it up without condensing water mist. There is also a self-cleaning agent applied to the surface, this is not sure if it will be successful?