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What is constant in mercury- in- glass thermometer?
volume of the mercury
Advantages of mercury in glass thermometer?
Advantages of mercury as a thermometric liquid. -It is a good conductor of heat and therefore the whole liquid reaches the temperature of the surroundings quickly. -It does not wet (cling to the sides of) the tube. -It has a high boiling point -It expands uniformly (linear expansion) and responds quickly to temperature changes, hence is sensitive. -It has a visible meniscus. Disadvantages -Mercury is very poisonous. -its expansively is fairly low -it is expensive -It has a high freezing point therefore it cannot be used in places where the temperature gets very low.
What is liquid-in-glass thermometer?
what do they use for the liquid in glass ball thermometer
Why does cling film stick better to glass than metal?
Metal is colder therefore causing a change to occur?(ps:I am fun)
What does a mercury tilt switch do in a circuit?
Mercury conducts electricity. These switches are usually used in thermometers in air conditioners, etc. There is a coil that is temperature sensitive that causes the mercury to tilt. There are also two electric poles inside of the glass the mercury is contained in. If the glass it tilted in one direction, the liquid mercury encompasses both poles and completes the circuit. If the glass is tilted in the OTHER direction, the mercury moves away from the poles and opens the circuit.
Why is mercury not wet even though its liquid?
Mercury does not wet glass due to one of it's most significant properties. Mercury will not cling to the glass that contains it.
What is mercury's precipitation?
Mercury's precipitation refers to the wetting of a particular glass by mercury. The mercury in this form is usually easily removed from the glass by scrubbing.
How does one remove a window cling without leaving marks on the glass?
For a static window cling you just pull it off the glass and it leaves no marks. You can then just place it back in the paper to save for use another time.
What is constant in mercury- in- glass thermometer?
volume of the mercury
When a mercury therometer is heated the mercury expands and rises in the thin tube of glass What does this indicate about the relative rates of expansion for mercury and glass?
It indicates that the mercury expands much faster in reaction to change in temp. If the glass expanded at the same rate as the mercury does, the level of mercury would not change.
Which thermometer is a greater health hazard if it breaks Is it the mercury in glass or alcohol in glass thermometer?
Mercury is poisonous.
What are the characteristics of mercury glass?
Mercury glass is a special method in which glass is blown and then inlaid with silver although mercury was not always used to do this. The surfaces of the glass are generally very reflective like a mirror and come in a variety of colors. The surface of the glass could even be described as looking metallic.
Why does the mercury curve upwards when put inside the graduated cylinder?
A graduated cylinder consists of glass. Glass is a highly polar substance. Mercury is nonpolar and has no significant attraction to glass, but mercury atoms are attracted to one another by metallic bonding. Therefore, mercury will form an upward-curving meniscus in a glass buret.
Can Mercury damage glass?
YES
What is the sSensor in Mercury-in-glass thermometer?
The sensor is just the mercury, a liquid metal.
Are Mercury glasses safe?
no because if dropped the mercury can spill causing poisoning, and the fumes are also poisonous
What would be least conductive cooper salt water glass or mercury?
Glass
