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3 years ago

At 3 atm of pressure, a cylinder with a movable piston contains 2000 ml of gas. If the pressure

Chemistry

1 answer:

zalisa [80]3 years ago

7 0

Answer:

V₂ = 750 mL

Explanation:

Given data:

Initial pressure = 3 atm

Initial volume = 2000 mL

Final pressure = 8 atm

Final volume = ?

Solution:

The given problem will be solved through the Boyle's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume

Now we will put the values in formula,

P₁V₁ = P₂V₂

3 atm × 2000 mL = 8 atm × V₂

V₂ =6000 atm. mL / 8atm

V₂ = 750 mL

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Answer:

(4) 266 moles

Explanation:

We have Dinitrogen Pentoxide N2O5

6.41*10^25 molecules are given

No of Moles of N2O5 = $\frac{No of Molecules }{Avogadro's Number}$

= $\frac{6.41 * 10^25}{6.022*10^23}$

= 106.5 mol

Now using Unitary Method

2 Mole of Nitrogen pentoxide require 5 mole of Oxygen to form N2O5

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In 106.5 mole of N = $\frac{5}{2}*106.5$ = 266.25 mole

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3 years ago

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Explanation:

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3 years ago

Nitrogen dioxide is one of the many oxides of nitrogen (often collectively called "NOx") that are of interest to atmospheric che

Helga [31]

Answer:

Partial pressure of dinitrogen tetroxide after equilibrium is reached the second time is 0.82 atm.

Explanation:

$2NO_2(g)\rightleftharpoons N_2O_4(g)$

Initially

3.0 atm 0

At equilibrium

(3.0-2p) p

Equilibrium partial pressure of $NO_2=2.1atm=3.0-2p$

p = 0.45 atm

The value of equilibrium constant wil be given by :

$K_p=\frac{p_{N_2O_4}}{(p_{NO_2})^2}=\frac{p}{(3.0-2p)^2}$

$K_p=\frac{0.45}{(2.1)^2}=0.10$

After addition of 1.5 atm of nitrogen dioxide gas equilibrium reestablishes it self :

$2NO_2(g)\rightleftharpoons N_2O_4(g)$

After adding 1.5 atm of $NO_2$ :

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At second equilibrium:'

(3.6-2P) (0.45+P)

The expression of equilibrium can be written as:

$K_p=\frac{p'_{N_2O_4}}{(p'_{NO_2})^2}$

$0.10=\frac{(0.45+P)}{(3.6-2P)^2}$

Solving for P:

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Partial pressure of dinitrogen tetroxide after equilibrium is reached the second time is 0.82 atm.

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3 years ago

On a container of chicken broth you notice the instructions to ""shake well before serving."" Which of the following best descri

prohojiy [21]

Answer:

The correct option is: D. A suspension

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3 years ago