大学物理(热学) 金晓峰 复旦大学物理系 xijin@fudan.edu.cn 2006-9-13 2021/9/5
2021/9/5 1 大学物理（热学） 金晓峰 复旦大学物理系 xfjin@fudan.edu.cn 2006-9-13
FIGURE 17-12 Pressure vs volume of a gas at a constant temperature, showing the inverse relationship as given by Boyle's law: as the pressure increases the volume decreases
) 73℃ rC°C000X10×20K30X40K50K
Constant-volume gas thermometer Reference mark Mercury Bulb Connecting ose FIGURE 17-7 Constant-volume gas thermometer
FIGURE 17-14 Blowing up a balloon means putting more air (more air molecules) into the balloon. which increases its volume The pressure is nearly constant (atmospheric) except for the small effect of the balloons elasticity