A helium-filled balloon has a volume of 1 m3. As it rises in the earth's atmosphere, its volume expands. What will its new volume be (in m3) if its original temperature and pressure are 20$\degree$C and 1 atm, and its final temperature and pressure are -40$\degree$C and 0.1 atm?
A)4
B)6
C)8
D)10
E)1.5

Question

Quizplus · Accepted Answer

Using the combined gas law, V2 = V1 * (P1/P2) * (T2/T1). Converting temperatures to Kelvin and substituting the values gives V2 = 1 * (1/0.1) * (233/293) ≈ 8 m³.

A Helium-Filled Balloon Has a Volume of 1 M3 °\degree° C and 1 Atm, and Its Final Temperature and Pressure

A Helium-Filled Balloon Has a Volume of 1 M3 $\degree$ C and 1 Atm, and Its Final Temperature and Pressure