The markings on a calibrated liquid-in-glassthermometer have faded away. We know that thecolumn lengths for 0 °C and 80 °C are 6 cm and21 cm respectively. Assume the liquid expandsuniformly with temperature. What are the columnlengths at (a) 37 °C and (b) steam point?* 11* 12 Describe how the Celsius temperature scale isdefined.+ 13 A liquid-in-glass thermometer is calibrated byimmersing it into melting ice and then boilingwater. The lengths of the liquid column are 3.2 cmand 18.2 cm respectively. Assume the liquidexpands uniformly with temperature.(a) Find the temperature when the liquid columnis 7.7 cm long.(b) Find the length of the liquid column when thetemperature is 65 °C.14 A mercury-in-glass thermometer is calibrated byimmersing it into pure melting ice and then pureboiling water. The lengths of the mercury columnare 3.8 cm and 16.4 cm respectively.

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