Problems:
3.75
3.76
3.78
3.79, find T₂ only
3.89

Answers:
3.75: V = 0.1256 m³
3.76: m = 130.2 lb
3.78: V = 5.843 x 10^-3 m³
3.79: T₂ = 488.8 K
3.89: rho_He/rho_air = 0.1382

Hints:

• Be sure to write out the given information, then write what you are to find.
• If applicable, draw pictures of the initial and final states; write the given information under each state.