a) Why is it suitable to use mercury in a liquid-in-glass thermometer?
b) The mercury-in-glass thermometer is put in melting ice and the length of the mercury column is 3.6cm. The cross sectional area of the glass tube is 0.01mm^2. What is the length of the mercury column when the thermometer is put into boiling water? (Hint: You may find out the change in volume before calculating the length of the column.)
**Volume of the mercury when 0 C (melting ice) = 0.0735 cm^3 Volume of the mercury when 100 C (boiling water) = 0.0749 cm^3
[題外]如果無誤應該是Heat的課題 這個在大部份學校應該都會作為F.3PHY的課程..[/題外] 囧... 大部份的東東忘了.. 我試下作答吧.= = 但大部份都未必正確.. a) - It can quickly respond to the measuring temperature. - It can measure a high temperature up to 357degree C. b) 學校好似未試過做類似題型.. 但係我試下啦... Difference between the volume of mercury when 100C and 0C =0.0749-0.0735 =0.0014cm^3 Let x cm be the height increased when changing in volume. x(0.0001)=0.0014 x=14 Therefore, the height increases 14cm. Then, the length of the mercury column when the thermometer is put into boiling water =14+3.6=17.6cm
[題外]如果無誤應該是Heat的課題 這個在大部份學校應該都會作為F.3PHY的課程..[/題外] 囧... 大部份的東東忘了.. 我試下作答吧.= = 但大部份都未必正確.. a) - It can quickly respond to the measuring temper ... ccshong28 發表於 27/9/2009 11:05 AM
發表於 27/9/2009 12:23 AM 
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