1.33 - heat and work during a triangular p-V cycle
1.38 - two rising bubbles
1.39 - speed of sound
1.41- heat capacity exercise
1.46 - heat capacities are usually measured at constant pressure
1.48 - melting of snow
1.50 - combustion of methane

Bonus questions
1.55 - heat capacity of a star
1.40 - allow for temperature variation in the atmosphere