1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anuta_ua [19.1K]
3 years ago
7

A balloon is filled with helium at a pressure of 2.4 x 105 Pa. The balloon is at a

Physics
1 answer:
garri49 [273]3 years ago
5 0
1)
p = 2.4 * 10^5 Pa
T = 18° C + 273.15 = 291.15 k
r = 0.25 m => V = [4/3]π(r^3) = [4/3]π(0.25m)^3 = 0.06545 m^3 = 65.45 L

Use ideal gas equation: pV = nRT => n = pV / RT = [2.4*10^5 Pa * 0.06545 m^3] / [8.31 J/k*mol * 291.15k] = 6.492 mol

Avogadro number = 1 mol = 6.022 * 10^23 atoms

Number of atoms = 6.492 mol * 6.022 *10^23 atom/mol = 39.097 * 10^23 atoms = 3.91 * 10^24 atoms

2) Double atoms => double volume

V2 / V1 = r2 ^3 / r1/3

2 = r2 ^3 / r1 ^3 => r2 ^3 = 2* r1 ^3

r2 = [∛2]r1

The factor is ∛2
You might be interested in
One property that makes electromagnetic waves differ from other types of waves is that they can
Flauer [41]
travel through a vacuum at the speed of light. Other waves need a medium; sound waves need molecules that vibrate.
5 0
3 years ago
Decomposition breaks down organic material into simpler units and:
Lady_Fox [76]

Answer:

d.) provides proteins for plants​

Explanation:

5 0
2 years ago
How much refrigerant must a system contain
Scrat [10]
About 10% to 15% of system charge
7 0
3 years ago
The magnetic field on the Sun is created by______.
Ber [7]
The answer is actually c hope this helps
( - - )
/ [®] \
| |
8 0
3 years ago
What is the function of the labeled structures?<br><br> A: <br><br> B: <br><br> C:
poizon [28]

Answer:

A: receives information

B: Carries information away from the cell body

C: Delivers information to the next cell

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • What's the hikers average velocity during part D of the hike?
    7·1 answer
  • A bullet of mass 0.017 kg traveling horizontally at a high speed of 290 m/s embeds itself in a block of mass 5 kg that is sittin
    6·1 answer
  • If your body is dehydrated, the control center in the brain will stimulate the release of a hormone which causes the reabsorptio
    14·1 answer
  • When you solve an equation the ___________ of ___________ must be treated like any other mathematical quantity— they must be mul
    13·1 answer
  • What happens In a nuclear fission reaction
    13·2 answers
  • Will mark as brainliest!
    10·1 answer
  • MATHPHYSSSSSSSS PLEASEEEEEE IM SORRY YOU PROBABLY HATE ME
    14·1 answer
  • In a new scenario, the block only makes it (exactly) half-way through the rough spot. How far was the spring compressed from its
    7·1 answer
  • Sugar dissolved in water is an example of?
    9·2 answers
  • A 9 V battery produces a current of 18 amps. What is the resistance?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!