1. Heat units; calorie, British thermal unit.
2. Three thermometer scales, fixed points on each.
3. Absolute zero, how determined. Its value on each scale.
4. Law of Charles, its meaning. Combination of laws of Boyle and Charles.
Exercises
1. Does ice melt at the same temperature at which water freezes? Express the temperature of freezing water on the three thermometer scales.
2. A comfortable room temperature is 68°F. What is this temperature on the centigrade and absolute scales?
3. Change a temperature of 15°C. to F.; 15°F. to C.; -4°C. to F.; -20°F. to C.
4. The temperature of the human body is 98.6°F. What is this temperature on the absolute and centigrade scales?