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Andreas93 [3]
2 years ago
5

Often express in psi, pressure is the term for force per unit of

Chemistry
1 answer:
taurus [48]2 years ago
8 0

Answer:

Surface area

Explanation:

psi =  pound square inch

Often expres in psi, pressure s the term for force per unit of surface area.

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The chemical equilibrium is given:
Kryger [21]

The volume of NO₂=6.25 L

<h3>Further explanation</h3>

Avogadro's stated :

<em>In the same T,P and V, the gas contains the same number of molecules  </em>

So the ratio of gas volume = the ratio of gas moles  

\tt \dfrac{V_1}{V_2}=\dfrac{n_1}{n_2}

the volume of each gas (in a container of volume 10L) :

Total mol=10+10+20=40 mol

  • NO :

\tt \dfrac{10}{40}\times 10=2.5~L

  • O₂ :

\tt \dfrac{10}{40}\times 10=2.5~L

  • NO₂ :

\tt \dfrac{20}{40}\times 10=5~L

NO₂ (has increased by 25%) :

\tt 0.25\times 5~L=1.25\\\\new~volume=5+1.25=6.25

  • O₂ :

\tt \dfrac{10}{20}\times 6.25=3.125

  • NO :

\tt \dfrac{10}{20}\times 6.25=3.125

5 0
3 years ago
PLZ ANSWER
Taya2010 [7]

Answer:

A. The energy stored in atmospheric carbon dioxide is conserved because it is used to create new forms of energy present in decomposed plants.

Explanation:

In the carbon cycle image, the result of an industry's work releases carbon dioxide into the atmosphere (this is represented by the letter G), this carbon dioxide is stored in the atmosphere (letter C) and then absorbed by plants during the process. of photosynthesis (letter A).

The carbon cycle is constituted by the absorption of carbon dioxide by plants in the photosynthesis process. Half of this absorbed carbon is released into the atmosphere and the other half the vegetable uses to produce sugars (glycoses).  By ingesting the plants, the animals ingest together the carbon to their body, being released through respiration or decomposition. Because some fungi and bacteria are responsible for the decomposition of both animals and vegetables, they ingest part of this carbon, releasing it into the atmosphere and soil.  In addition to bacteria, the burning process also releases carbon dioxide into the soil and atmosphere. Vegetables, through the breathing process, also absorb carbon dioxide and release oxygen unlike animals.

4 0
4 years ago
Olympic cyclist fill their tires with helium to make them lighter. Calculate the mass of air in an air filled tire and the mass
inn [45]

<u>Answer:</u> The mass difference between the two is 7.38 grams.

<u>Explanation:</u>

To calculate the number of moles, we use the equation given by ideal gas follows:

PV=nRT

where,

P = pressure = 125 psi = 8.50 atm    (Conversion factor:  1 atm = 14.7 psi)

V = Volume = 855 mL = 0.855 L    (Conversion factor:  1 L = 1000 mL)

T = Temperature = 25^oC=[25+273]K=298K

R = Gas constant = 0.0821\text{ L. atm }mol^{-1}K^{-1}

n = number of moles = ?

Putting values in above equation, we get:

8.50atm\times 0.855L=n\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times 298K\\\\n=\frac{8.50\times 0.855}{0.0821\times 298}=0.297mol

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}      .....(1)

  • <u>For air:</u>

Moles of air = 0.297 moles

Average molar mass of air = 28.8 g/mol

Putting values in equation 1, we get:

0.297mol=\frac{\text{Mass of air}}{28.8g/mol}\\\\\text{Mass of air}=(0.297mol\times 28.8g/mol)=8.56g

Mass of air, m_1 = 8.56 g

  • <u>For helium gas:</u>

Moles of helium = 0.297 moles

Molar mass of helium = 4 g/mol

Putting values in equation 1, we get:

0.297mol=\frac{\text{Mass of helium}}{4g/mol}\\\\\text{Mass of helium}=(0.297mol\times 4g/mol)=1.18g

Mass of helium, m_2 = 1.18 g

Calculating the mass difference between the two:

\Delta m=m_1-m_2

\Delta m=(8.56-1.18)g=7.38g

Hence, the mass difference between the two is 7.38 grams.

5 0
3 years ago
What would the unit of measurement be for the density of a regular solid?
balu736 [363]

Answer:

SI unit: kg/m³

but g/cm³ is commonly used

Explanation:

7 0
3 years ago
The area of the circular base of a can of
zlopas [31]

Answer:

Volume = 75 inch³

Explanation:

Given data:

Area = 12.5 inch

Height = 6 inch

Volume =?

Solution:

Volume = height × length × width

Volume =  Area × height

Now we will put the values in formula;

Volume = 12.5 inch² ×  6 inch

Volume = 75 inch³

6 0
3 years ago
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