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3 years ago

At constant temperature and pressure, increasing the amount of a gas will __________.

Chemistry

1 answer:

aivan3 [116]3 years ago

6 0

At constant temperature and pressure, increasing the amount of gas will increase the volume.

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Iron and vanadium both have the BCC crystal structure and V forms a substitutional solid solution for concentrations up to appro

Hatshy [7]

Answer:

The unit cell edge length for the alloy is 0.288 nm

Explanation:

Given;

concentration of vanadium, Cv = 8 wt%

concentration of iron, Cfe = 92 wt%

density of vanadium = 6.11 g/cm³

density of iron = 7.86 g/cm³

atomic weight of vanadium, Av = 50.94 g/mol

atomic weight of iron, Afe= 55.85 g/mol

Step 1: determine the average density of the alloy

$\rho _{Avg.} = \frac{100}{\frac{C_v}{\rho _v} + \frac{C__{Fe}}{\rho _{Fe}} }$

$\rho _{Avg.} = \frac{100}{\frac{8}{6.11} + \frac{92}{7.86} } = 7.68 \ g/cm^3$

Step 2: determine the average atomic weight of the alloy

$A _{Avg.} = \frac{100}{\frac{C_v}{A _v} + \frac{C__{Fe}}{A _{Fe}} }$

$A _{Avg.} = \frac{100}{\frac{8}{50.94} + \frac{92}{55.85} } = 55.42 \ g/mole$

Step 3: determine unit cell volume

$V_c=\frac{nA_{avg.}}{\rho _{avg.} N_a}$

for a BCC crystal structure, there are 2 atoms per unit cell; n = 2

$V_c=\frac{2*55.42}{ 7.68*6.022*10^{23}} = 2.397*10^{-23} \ cm^3/cell$

Step 4: determine the unit cell edge length

Vc = a³

$a = V_c{^\frac{1}{3} }\\\\a = (2.397*10^{-23}}){^\frac{1}{3}}\\\\a = 2.88 *10^{-8} \ cm$ = 0.288 nm

Therefore, the unit cell edge length for the alloy is 0.288 nm

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4 years ago

Describe the following properties of liquids with reference to

8_murik_8 [283]

Answer:

f) is the answer please thanks

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2 years ago

What feature appears at point A on the topographic map?<br> depression<br> swamp<br> road<br> school

Elanso [62]

Answer: B: swamp

Explanation:

Have faith in me:)

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3 years ago

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Select the correct answer. Why were industrial and agricultural surpluses a problem for the US economy? A. The United States did

almond37 [142]

Answer:

the correct answers among them is C

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On many common appliances, there is an “O” or “I” on the power switch. What does each symbol mean?

Art [367]

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3 years ago