Chemistry

Balloon- CO2
Balloon- O2
Balloon- He
Balloon- N2
Balloon- CH4

Represented above are five identical balloons, each filled to the same volume at 25 degrees Celcius and 1.0 atmosohere pressure with the pure gases indicated.

A) which balloon contains the greatest mass of gas? explain

B) Compare the average kinetic engeries of the gas molecules in the balloons. explain.

C)Which balloon contains the gas that would be expected to deviate mose from the behavior of an ideal gas? explain.

D)12 hours after being filled, all the balloons have decreased in size. Predict which balloon will be the smallest


Balloon- CO2
Balloon- O2
Balloon- He
Balloon- N2
Balloon- CH4

Represented above are five identical balloons, each filled to the same volume at 25 degrees Celcius and 1.0 atmosohere pressure with the pure gases indicated.

A) which balloon contains the greatest mass of gas? explain

Look at PV=nRT. If P is the same, V is the same, R and T are constants (and therefore the same), then n must be the same for each gas. So calculate for a number of mols (just pick a number, such as 1) the molar mass.

B) Compare the average kinetic engeries of the gas molecules in the balloons. explain.

KE = 1/2 mv2

C)Which balloon contains the gas that would be expected to deviate mose from the behavior of an ideal gas? explain.

Deviations from ideal behavior are a function of size and attraction to other molecules. Look for the molecule that is the largest and might have some attractions to each other.

D)12 hours after being filled, all the balloons have decreased in size. Predict which balloon will be the smallest

I would look for the molecule that I thought might have the best chance of getting through the pores of the balloon walls.



For A)
wat do i plug in if they don't give me a volume.and will i get the number of moles from the PV=nRT, or is there another step?

For B)
what do i do if they don't give me a volume?



Assume any volume you wish. It doesn't matter as long as you use the same number for all of them. And there is no other step. Just use 1 for P, 22.4 for V, (although you can pick any number), use 0.08206 for R and use 273 for T. But I had envisioned you doing it simpler than that. Since the problem says the same conditions, then we know P is the same, we know V is the same, we know R is the same and we know T is the same;therefore, n (the number of mols) MUST be the same. So make it easy on yourself and pick 1 mol for n to start with. NOW, calculate the mass of 1 mol of CO2, O2, N2, He, etc etc. That will be 44 g for CO2, 32 g for O2, 28 g for N2, etc. You get the idea? Then you just compare to see which balloon has the highest mass and which the lowest mass.


I gave you the formula for KE which is 1/2*mass*velocity2. But the average KE is proportional to the temperature; that is, at the same temperature, all gases have the same average KE. The masses will be different and the speeds of the small molecules will be greater than those of larger molecules but the average KE will be the same.


e

  1. 👍
  2. 👎
  3. 👁
  1. iuhgpswgw

    1. 👍
    2. 👎
  2. a)CO2- has highest molecular weight
    b) all of them same because kinetic energy is determined by temperature, and that's the same
    c)CO2- has most electrons
    d) He-smallest size

    1. 👍
    2. 👎
  3. answer to this is A

    1. 👍
    2. 👎
  4. Each balloon was filled with an identical number of moles of gas. Which of the following best explains why balloon B is larger than balloon A?

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    An empty rubber balloon has a mass of 0.012kg. the balloon is filled with helium at 0 degrees celcius, 1 atm pressure, and a density of 0.179 kg/m3. the filled balloon has a radius of 0.5 m. a)what is the magnitude of the buoyant

  2. Physics(Please help)

    1) two hot-air balloons are 48.2 m and 61.0 m above the ground. A person in the left balloon observes that the right balloon is 13.3° above the horizontal. What is the horizontal distance x between the two balloons? The left

  3. math

    A water balloon is shot into the air so that its height h, in metres, after t seconds is h = —4.9t^2 + 27t + 2.4 a)How high is the balloon after 1 s? b)For how long is the balloon more than 30 m high? c)What is the maximum

  4. Physics

    A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. For simplicity, consider the weight to be only that of the hot air within the balloon, thus ignoring the balloon fabric

  1. Math

    Tomas makes balloon structures at a circus. In 180 minutes, he uses 252 balloons to make 36 identical balloon structures. a. How many minutes does it take to make one balloon sculpture? How many balloons are used in 1 sculpture.

  2. physics

    An empty rubber balloon has a mass of 0.0100 kg. The balloon is filled with helium at a density of 0.181 kg/m3. At this density the balloon is spherical with a radius of 0.300 m. If the filled balloon is fastened to a vertical

  3. Physics

    A 5.00 x 102 kg hot air balloon takes off from rest at the surface of the earth. The buoyant force lifts the balloon straight up, performing 9.70 x 104 J of work on the balloon. At the instant the balloon's upward speed is 4.08

  4. physics

    an empty rubber balloon has mass 0.0120kg, the balloon is filled with helium of density 0.181 kg/m^3. the balloon is spherical w/ radius 0.500m. if the balloon is ties to a vertical string, what is thw tension in the string?

  1. Math(Revised)

    Phoebe and Tucker are 48m apart. Phoebe looks up at an angle of 43 degrees to see a hot air balloon hovering in the sky directly between her and Tucker. Tucker looks up at an angle of 31 degrees to see the hot air balloon. A.)

  2. science-biology

    In lab, you use a special balloon that is permeable to water but not sucrose to make an "artificial cell". The balloon is filled with a solution of 20% sucrose and 80% water and is immersed in a beaker containing a solution of 40%

  3. math

    Ross will make a water balloon that can be modeled with a sphere. A constraint he must consider is that when the radius of the balloon exceeds 5 inches, the balloon will pop. If he uses a garden hose with a flow rate of 12 gallons

  4. Physics

    A water balloon is thrown horizontally at a speed of 2.00 m/s from a roof of a building that is 6.00 m above ground. At the same instant the balloon is released a second balloon is thrown straight down at 2.00 m/s from the same

You can view more similar questions or ask a new question.