Helium Balloon Challenge

Samins Challenge

A helium filled balloon has more potential energy at hgiher altitues. Is the statement correct? Explain.

Calculate the buoyant force on a helium filled balloon having a volume of 14000 cm^3 .

A weather balloon is inflated with helium. The balloon has a volume of 100 m^(3) and it must be inflated to pressure of 0.10 atm. If 50 L gas cylinders of helium at a pressure of 100 atm are used, how many cylinders are needed? Assume that the temperature is constant.

A tank used for filling helium balloons has a volume of 0 .3 m^3 and contains (2.0) mol of helium gas at 20 .0^@ C . Assuming that the helium behaves like an ideal gas. (a) What is the total translational kinetic energy of the molecules of the gas ? (b) What is the average kinetic energy per molecule ?

The production of Humulilm was a challenge as:

A spherical balloon of volume V contains helium at a pressure P. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is vec(K) ?

A spherical balloon of volume 4.00 xx 10^(3) cm^(3) contains helium at a pressure of 1.20 xx 10^(5) Pa . How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 xx 10^(-22) J ?

A balloon has 5.0 mole of helium at 7^(@)C . Calculate (a) the number of atoms of helium in the balloon. (b) the total internal energy of the system.