A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.31 kg m-3. Under these conditions the total surface area of the balloon is 0.11 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1. Calculate the rate of helium effusion (in g/hr) from the balloon.
9.31
can someone give me a formula?
formula, please?
The answer 9.31 is not right can any give a formula.
Same here, can anyone show how to insert the data into the formulas. Thank you
A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.7 kg m-3. Under these conditions the total surface area of the balloon is 0.52 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1. Calculate the rate of helium effusion (in g/hr) from the balloon.
Anyone with the formula and how to insert the information from the question above would be great. Thank you
This is a question from the second midterm of 3.091x by edx. Stop cheating, it's silly and pointless.
can someone give me a formula? and what data to use in the formula? thank you
Rate of effusion of gases are inversely propotional to the square root of their molar masses.
Rate1 / Rate2 = square root of (Mass2 / Mass 1)