The markings on a calibrated liquid-in-glass thermometer have faded away. We know that the column lengths for 0 °C and 80 °C are 6 cm and 21 cm respectively. Assume the liquid expands uniformly with temperature. What are the column lengths at (a) 37 °C and (b) steam point? * 11 * 12 Describe how the Celsius temperature scale is defined. + 13 A liquid-in-glass thermometer is calibrated by immersing it into melting ice and then boiling water. The lengths of the liquid column are 3.2 cm and 18.2 cm respectively. Assume the liquid expands uniformly with temperature. (a) Find the temperature when the liquid column is 7.7 cm long. (b) Find the length of the liquid column when the temperature is 65 °C. 14 A mercury-in-glass thermometer is calibrated by immersing it into pure melting ice and then pure boiling water. The lengths of the mercury column are 3.8 cm and 16.4 cm respectively.

The markings on a calibrated liquid-in-glass thermometer have faded away. We know that the column lengths for 0 °C and 80 °C are 6 cm and 21 cm respectively. Assume the liquid expands uniformly with temperature. What are the column lengths at (a) 37 °C and (b) steam point? * 11 * 12 Describe how the Celsius temperature scale is defined. + 13 A liquid-in-glass thermometer is calibrated by immersing it into melting ice and then boiling water. The lengths of the liquid column are 3.2 cm and 18.2 cm respectively. Assume the liquid expands uniformly with temperature. (a) Find the temperature when the liquid column is 7.7 cm long. (b) Find the length of the liquid column when the temperature is 65 °C. 14 A mercury-in-glass thermometer is calibrated by immersing it into pure melting ice and then pure boiling water. The lengths of the mercury column are 3.8 cm and 16.4 cm respectively.