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
Mars2501 [29]
3 years ago
15

A weather balloon of known initial volume is released. The air pressures ar its initial and final altitudes are known. Why can't

you find its new volume by using these known values and Boyle's law?
Chemistry
2 answers:
Nezavi [6.7K]3 years ago
5 0

Answer: you cannot find its new volume by using these known values and Boyle's law because the temperature does not remain constant.


Explanation:


Boyle's law states that the volume of a fixed amount of gas, at a constant temperature, varies inversely with the pressure.


So, it is a condition that the temperature does not change.


For the wheater ballon case, as it travels through the atmosphere, the temperature at different altitudes will be different.


So, you might use other equation of states, such as the combined law, which does deal with changes in the three variables: volume, pressure, and temperature.


The mathematical formulation of Boyle's law is:


pV = constanjt ⇒ p₁ V₁ = p₂ V₂, at constant T.


The mathematical formulation of the combined law of gases is:


pV/T = constant ⇒ p₁ V₁ / T₁ = p₂ V₂ / T₂, for a fixed amount of gas, then it might work for the weather ballon (if you know the initial and end temperatures).



IRINA_888 [86]3 years ago
3 0

<span>You cannot find the new volume by using initial volume of the weather balloon and air pressure ai its initial and final altitudes and Boyle’s law because the given values are not the same. Boyle’s law holds for the pressure and volume of the GAS at constant temperature. Here you are given the air pressure outside the weather balloon not the inside of the balloon. They have different gases and so it would not apply.</span>

You might be interested in
Assuming equal concentrations and complete dissociation, rank these aqueous solutions by their freezing points. nh4cl cobr3 k2so
Illusion [34]
Answer: CoBr3 < K2SO4 < NH4 Cl

Justification:

1) The depression of the freezing point of a solution is a colligative property, which means that it depends on the number of particles of solute dissolved.

2) The formula for the depression of freezing point is:

ΔTf = i * Kf * m

Where i is the van't Hoof factor which accounts for the dissociation of the solute.

Kf is the freezing molal constant and only depends on the solvent

m is the molality (molal concentration).

3) Since, you are assuming equal concentrations and complete dissociation of the given solutes, the solute with more ions in the molecular formula will result  in the solution with higher depression of the freezing point (lower freezing point).

4) These are the dissociations of the given solutes:

a) NH4 Cl (s) --> NH4(+)(aq) + Cl(-) (aq) => 1 mol --> 2 moles

b) Co Br3 (s) --> Co(3+) (aq) + 3Br(-)(aq) => 1 mol --> 4 moles

c) K2SO4 (s) --> 2K(+) (aq) + SO4 (2-) (aq) => 1 mol --> 3 moles

5) So, the rank of solutions by their freezing points is:

CoBr3 < K2SO4 < NH4 Cl
4 0
3 years ago
Read 2 more answers
from the following equation in which decomposition of CaCO3 takes place, give your justification. CaCO3 gives Ca +CO2 ​
IceJOKER [234]

Answer:

CaCO₃(s) => CaO(s) + CO₂(g) ... GpIIA Decomp

Explanation:

Metallic Carbonates decompose into a metallic oxide and carbon dioxide.

Examples:

Na₂CO₃(s) => Na₂O(s) + CO₂(g) ... GpIA Decomp

MgCO₃(s) => MgO(s) + CO₂(g) ... GpIIA Decomp

7 0
2 years ago
Vinegar is classified as a base, acid, or is it neutral ?
Scrat [10]

Answer:

Vinegar is acidic => acetic acid (HC₂H₃O₂)

Explanation:

Vinegar consists of acetic acid (HC₂H₃O₂), water and trace amounts of other chemicals, which may include flavorings. The concentration of the acetic acid is variable. Distilled vinegar contains 5-8% acetic acid.

7 0
3 years ago
How many moles of H20 are needed to produce 1 mole of O2 in the following equation?
Alex787 [66]
2 moles is the answer
6 0
3 years ago
HELP ASAP
Ghella [55]

potassium reacts the most vigorously.

7 0
3 years ago
Other questions:
  • Citrate synthase catalyzes the reaction: ????x????????o????c???????????????????? + ????c????????y???? − ????o???? → c???????????
    13·1 answer
  • The results of Rutherford’s gold foil experiment disproved the model of the atom that his mentor and colleague had proposed. How
    7·1 answer
  • How many atoms are in Na2CrO4
    14·1 answer
  • When salt dissolves in water, what type of substance is formed? (4 points)
    8·1 answer
  • Put these different types of radiation in order from MOST to LEAST penetrating.
    10·1 answer
  • write a balanced chemical equation for solid copper reacting with aqueous silver nitrate to produce aqueous copper (II) nitrate
    8·1 answer
  • If 120.3 mL of water is shaken with oxygen gas at 2.1 atm, it will dissolve 0.0043 g O2. Estimate the Henry's law constant for t
    15·1 answer
  • Why are some lava's viscous than other's?
    8·1 answer
  • Please help me, im studying for finals and i need an answer to this question! Will mark brainliest for the best answers!w
    13·2 answers
  • What's the difference between a conductor and an insulator?<br><br>I'll mark you as brainliest ​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!