Chapter 8.3, Problem 8.26PP

Indicate whether the final volume of gas in each of the following is the same, larger, or smaller than the initial volume, if pressure and amount of gas do not change:

1. A volume of 505 mL of air on a cold winter day at $-15\text{ °C}$ is breathed into the lungs, where body temperature is $37\text{ °C}$ .
2. The heater used to heat the air in a hot-air balloon is turned off.
3. A balloon filled with helium at the amusement park is left in a car on a hot day.