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Which capacity is more reasonable for a test tube 9 L or 200 mL?
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∙ 6y ago
9 L
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Why a tightly fitting cork on a test tube is blown off if the test tube is heated?
The air molecules inside the test tube have a higher mobility when heated (they move around more). The collisions between these air molecules create more pressure on the inside of the test tube (force/area, where the force is the result of the increasing collisons and the area is the internal wall of the test tube.) This may result in the pressure inside of the test tube to be greater than the outside atmospheric pressure on the cork (actually atmospheric pressure on the cork and the frictional force on the cork created by the mouth of the test tube). If the internal pressure becomes greater than the external pressure (plus frictional force) the cork will come loose of the test tube.
How would you show that water is not a good conductor of heat?
A test tube is filled with tap water (about 25oC). An ice block is placed in the test tube and is kept at the bottom of the test tube by means of a wire gauze. Next (without delaying too much since the ice block would melt completely!), the test tube is bent and the upper end of the test tube placed in a Bunsen flame. It is found that the water at the upper end boils before the ice block melts. This shows that water is a poor conductor of heat.
What did William Crookes use to test John Dalton's theory?
A tube!
Why does a test tube with less water have a higher pitch?
because their is more air there. The more air that is allowed the higher pitch there is. Thats why the rule is the shorter the length the higher the frequency. Hope i helped u :)
What instrument measures the external and internal diameter of a test tube?
A vernier caliper
What is the carrying capacity of the test tube as long as added?
100g
What is carrying capacity of the test tube as long food is added?
100g
What is carrying capacity of the test tube as long as food is added?
100g
What is a 10x75 test tube and its use?
10 x 75 mm test tube; 4.0 mL capacity Used for liquid handling (many purposes). This is a smallish tube size, probably more commonly used in biology/medicine than in chemistry.
Where was the test tube made?
when was test tube first made,when and who?
What are the classifications of test tube?
test tube is classified in to various types namely hard test tube ,boiler test tube,20 ml test tube
Why slant is prepared for microbial growth?
generally slant is prepared in test tube because test tube provide more surface area for microbial growth and the use of test tube in slanting is that test tube is best equipment to store media for long time.
What you must do to inspect the drink tube assembly?
perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test
What is the material you should look for while buying test tube?
When look to buy a test tube, one should consider the purpose of the test tube. If heat is not an issue for the user, then a plastic one is more than satisfactory. However, the standard lab test tube is primarily made of glass.
What is a 13x100 test tube and its use?
13x100 test tubes are excellent when you need to have larger volume in a test tube. These larger tubes allow more air to touch the sample.
Does a test tube hold more liquid than a flask?
No it does not
What is the difference between a test tube holder and a test tube rack?
No. A ringstand is a stand with a base with a large pole sticking out of it. that you can attach rings to. A wire mesh is usually placed on the ring for setting a beaker to be heated. A test tube clamp can be attached to the ring stand to hold a test tube, for say, heating it in a hot water bath.
