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Why does mercury fall downwards and water rise upwards when placed in a capillary tube?
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∙ 10y ago
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What is a capillary melting point?
The sample is placed in a sealed capillary and heated up to the melting.
Why the Mercury-in-glass thermometer first descends and then rise when put in flame?
When placed in a flame, the glass bulb expands rapidly. This increases the volume of the bulb and so the column descends. However, the glass then conducts the heat to the mercury so that it undergoes thermal expansion and the column rises.
When water is placed in a thin glass tube it tends to climb up the walls of the tube. This effect is known as capillary action. What causes this capillary action?
Hydrogen Bonding
When water is placed in a thin glass tube it tends to climb up the walls of the tube This effect is known as capillary action What causes this capillary action?
Hydrogen Bonding
Where should a heater in a water tank be placed to efficiently warm the water?
It will be most efficient if placed at or near the bottom so that convection will move the heated water upwards, warming the water above it as it rises and allowing the colder water to sink downwards towards the coils. If the heating element were placed higher up, the water below would have to warm almost exclusively by conduction which would take much longer.
Why does a stalk of celery wilt when placed in a glass of salt water?
Because of something called capillary action. Capillary action is the tendency of water to move upward in a capillary or thin tube, it's the same reason as to why when placed in a solution of water and red dye, the celery will turn red as well. The action causes the celery to absorb the salt water into it thouroghly and thus, it wilts.
Can gold float on mercury?
Gold is a higher density than Mercury so it will sink if placed into a container of mercury.
What side of the worm face up when placed in the tray?
its genital area is facing upwards
Is mercury sink or float if you placed in sea water?
Mercury is a heavy metal, it will sink in sea water.
What does adhesion produce an effect of when you place a straw in a liquid?
Adhesion produces the effect of capillary action when a straw is placed in liquid. Capillary action is liquid's ability to flow in narrow spaces without external forces like gravity.
Why are table forks in England placed 'prongs' upwards in formal dinner settings?
That is how it is done here in the US as well
What family is the element of mercury in?
Mercury is a natural chemical element, metal, liquid, placed in group 12 (zinc group).
