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Tju [1.3M]
3 years ago
13

This table shows how the number of kingdoms has

Chemistry
2 answers:
daser333 [38]3 years ago
4 0

Answer:

the answer is 5

Please vote. Brainiest

Explanation:

Softa [21]3 years ago
3 0

Answer:5

Explanation:

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A sample of a gas in a 4L container at 300K has a pressure of 1 atm. If the
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The final pressure of the gas in the container is 4 atm

From the question given above, the following data were obtained:

Initial volume (V₁) = 4 L

Initial temperature (T₁) = 300 K

Initial pressure (P₁) = 1 atm

Final temperature (T₂) = 600 K

Final volume (V₂) = 2 L

<h3>Final pressure (P₂) =?</h3>

  • Using the combine gas equation, we can obtain the final pressure of the gas as illustrated below:

\frac{P_{1} V_{1} }{T_{1}} = \frac{P_{2} V_{2}}{T_{2}}\\\\\frac{1 * 4}{300} = \frac{P_{2} * 2}{600} \\\\

Cross multiply

300 × 2 × P₂ = 4 × 600

600 × P₂ = 2400

Divide both side by 600

P_{2} = \frac{2400}{600} \\\\

<h3>P₂ = 4 atm</h3>

Therefore, the final pressure of gas is 4 atm.

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4 0
3 years ago
Consider the following reaction: 2 NO(g) + Br2(g) ⇄ 2 NOBr(g) Kp = 27 at 25°C What is the value of Kc at 25°C?
Paul [167]

Answer:

The value of Kc is 660 (Option E) is correct

Explanation:

Step 1: Data given

Kp = 27

Temperature = 25.0 °C

Step 2: The balanced equation

2 NO(g) + Br2(g) ⇄ 2 NOBr(g)

Step 3: Calculate Kc

Kp = Kc * (RT)^Δn

⇒ with Kp = 27

⇒ with Kc = TO BE DETERMINED

⇒ with R = the gas constant = 0.08206 L*atm/mol*K

⇒ with T = The temperature = 25 °C = 298 K

⇒ Δn = the difference in moles = -1

 

27 = Kc * (0.08206*298)^-1

Kc = 660

The value of Kc is 660 (Option E) is correct

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3 years ago
Check out this app! It's millions of students helping each other get through their schoolwork. https://brainly.app.link/qpzV02Ma
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What is a segment of dna that contains a single unit of information?
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This segment is called a gene
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