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Question
A glass tube has one end in a dish of mercury and the other end closed by a stopcock. The distance from the surface of the mercury to the bottom of the stopcock is 800 mm, as indicated by the meter stick shown in the drawing below. The apparatus is at 20C, and the mercury level in the tube is the same as that in the dish.
Which drawing best shows the approximate level of the mercury in the tube when the temperature of the entire apparatus is lowered from +20C to -20C?
A) drawing (1)
B) drawing (2)
C) drawing (3)
D) drawing (4)
Answer
This answer is hidden. It contains 1 characters.
Related questions
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B) covalent and basic
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B) silicon and oxygen form better σ bonds than carbon and oxygen, so Si-O single bonds are stronger than C-O single bonds.
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Q:
The bright colors of anodized titanium are due toA) electrodeposition of organic dyes on the titanium surface.B) the formation of a titanium alloy with chromium and copper.C) iridescence involving the semitransparent outer layer of TiO2.D) trapping of organic dye molecules in a spongy TiO2 matrix.
Q:
Chromium can be electroplated from an aqueous solution containing sulfuric acid and chromic acid, H2CrO4. What current is required to deposit chromium at a rate of 1.25 g/min?
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Q:
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Q:
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