What might you expect for the value of S∘ (entropy) for butane, C4H10? Entropies provided (Hint: entropy increases with increasing molecular complexity):

- CH4=186.3(J/mol*K)

-C2H6=229.6(J/mol*K)

-C2H8=270.3(J/mol*K)

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3