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adoni [48]
2 years ago
5

A spacecraft is filled with 0.500 atm of N2 and 0.500 atm of O2. Suppose a micrometeor strikes this spacecraft and puts a very s

mall hole in its side. Under these circumstances,
A. O2 is lost from the craft 6.9% faster than N2 is lost.

B. O2 is lost from the craft 14% faster than N2 is lost.

C. N2 is lost from the craft 6.9% faster than O2 is lost.

D. N2 is lost from the craft 14% faster than O2 is lost.

E. N2 and O2 are lost from the craft at the same rate.
Chemistry
2 answers:
Archy [21]2 years ago
7 0

Answer:

N2 is lost from the craft 6.9% faster than O2 is lost.

Explanation:

<u>Step 1:</u> Data given

0.500 atm of N2

0.500 atm of 02

Molar mass of 02 = 2*16 g/mole = 32 g/mole

Molar mass of N2 = 2* 14 g/mole = 28g/mole

<u>Step 2:</u> Calculate the rate of loss

r1N2 / r2O2 = √(M2(02)/M1(N2))  = √(32/28) = 1.069

1.069-1)*100= 6.9%

This means N2 is lost from the craft 6.9% faster than O2 is lost.

quester [9]2 years ago
5 0

Answer:

C. N₂ is lost from the craft 6.9% faster than O₂ is lost.

Explanation:

The rate of effusion of a gas (r) is inversely proportional to the square root of its molar mass (M), as expressed by the Graham's law.

\frac{rN_{2}}{r_{O_{2}}} =\sqrt{\frac{M(O_{2})}{M(N_{2})} } =\sqrt{\frac{32.00g/mol}{28.00g/mol} } =1.069\\rN_{2}=1.069rO_{2}

The rate of effusion of N₂ is 1.069 times the rate of effusion of O₂, that is, N₂ effuses 6.9% faster than O₂.

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Answer:

  • <em>Cu + O₂  → CuO₂</em>

Explanation:

A <em>combustion reaction</em> is the reaction with oxygen along with the release of energy in form of heat or light.

Organic compounds (like CH₄) undergo combustion forming water and CO₂.

The combustion reaction of CH₄ is:

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Hence, the first equation from the choices is not showing the combustion reaction of CH₄.

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The reaction of copper and oxygen (second choice) is a combustion reaction:

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The formation of water (2H₂ + O₂ → 2H₂O) is other example of a combustion reaction where no organic compounds are involved.

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Which undefined geometric term is described as a two-dimensional set of points that has no beginning or end?
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Answer:

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Explanation:

There are three <em>undefined terms</em><em> in geometry</em>:

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They are referred as undefined terms because they are not defined in a formal way, i.e. using mathematically defined words. At the end these terms are abstractions (ideas).

The point has no dimensions, it can be represented by the tip of a sharp pencil.

The line is referred as an infinite set of joined points that extend indefinitely in one direction (from right to left, from north to south), so it has one dimension. The intersection of of two perpendicular walls is an example of what a line is.

Finally, the term to which the question is referred is the plane: an infinite set of joined points that extends in two dimensions. An example of plane is the surface of quite water. The plane does not have depth, only extension; that is why it has only two dimensions.

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tiny-mole [99]

Answer:

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Explanation:

The reaction is: N₂ + 3H₂ → 2NH₃

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