Aballoon filled with helium gas has a volume of 500 ml at a pressure of 1 atm. the balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm. if the temperature has remained the same, what volume does the gas occupy at this height?

Volume of the gas occupy at this height will be 1 L.

Explanation:

Volume of the balloon when pressure of helium gas was 1 atm :

= 500 mL = 0.5 L = (1000 mL= 1 L)

Volume of the balloon when the pressure of helium gas is 0.5 atm :

V=

According to Boyle's Law:

(At constant temperature)

Volume of the gas occupy at this height will be 1 L.

12. Which of the following are the three main classification domains?
A. Fungus, Plants, and Animals
B. Bacteria, Archaea, and Eukarya
C. Protist, Fungus, and Plants
D. Bacteria, Virus, and Eukarya

i think it’s c :)