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3 years ago

Which characteristic is unique to archeabacteria?

1 answer:

4 0

Unique archaea characteristics include their ability to live in extremely hot or chemically aggressive environments, and they can be found across the Earth, wherever bacteria survive. Those archaea that live in extreme habitats such as hot springs and deep-sea vents are called extremophiles.

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Which statement goes against the kinetic theory of gases?

AURORKA [14]

the answer is c. Gas molecules will never collide with the walls of the container

8 0

4 years ago

Read 2 more answers

An equilibrium mixture of PCl₅(g), PCl₃(g), and Cl₂(g) has partial pressures of 217.0 Torr, 13.2 Torr, and 13.2 Torr, respective

Papessa [141]

Answer:

PCl₅ = 223.4 torr

PCl₃ = 6.8 torr

Cl₂ = 26.4 torr

Explanation:

For gas substances, the equilibrium constant can be calcultaed based on the partial pressures (Kp). For a generic reaction:

aA(g) + bB(g) ⇄ cC(g) + dD(g)

$Kp = \frac{(pC)^c*(pD)^d}{(pA)^a*(pB)^b}$ , where pX is the partial pressure of X.

The reaction with the gas mixture given is:

PCl₅(g) ⇄ PCl₃(g) + Cl₂(g)

Kp = [(pPCl₃)*(pCl₂)]/(pPCl₅)

Kp = [13.2*13.2]/217

Kp = 0.803

When more Cl₂ is added, for Le Chatêlier's principle, the equilibrium will shift for the left, more PCl₅ will be formed, and the equilibrium will be reestablished.

The initial total pressure was 243.4 torr, so if it jumps to 263.0 torr, it was added 19.6 torr of Cl₂, so the partial pressure of Cl₂ is 32.8 torr. For the reaction:

PCl₅(g) ⇄ PCl₃(g) + Cl₂(g)

217.0 13.2 32.8 Initial

+x -x -x Reacts (stoichiometry is 1:1:1)

217 + x 13.2-x 32.8-x Equilibrium

So, the equilibrium constant must be:

$Kp = \frac{(13.2-x)*(32.8-x)}{217+x}$

0.803 = (432.96 - 46x + x²)/(217 + x)

432.96 - 46x + x² = 174.251 + 0.803x

x² - 46.803x + 258.71 = 0

By Bhaskara's equation:

Δ = (46.803)² - 4*1*258.71

Δ = 1,155.68

x =[-(- 46.803) ±√1,155.68]/2

x' = (46.803 + 33.99)/2

x' = 40.40

x'' = (46.803 - 33.99)/2

x'' = 6.40

x < 32.8, so x = 6.40

The new partial pressures are:

PCl₅ = 217.0 + 6.40 = 223.4 torr

PCl₃ = 13.2 - 6.40 = 6.8 torr

Cl₂ = 32.8 - 6.40 = 26.4 torr

6 0

4 years ago

Which of the following is true according to the kinetic theory of gases? A) Molecules move randomly. B) Molecules have elastic c

Gekata [30.6K]

Answer: Option (D) is the correct answer.

Explanation:

According to Kinetic theory of gases, molecules of a gas move in rapid and random motion. That is, particles are constantly in linear motion.

When these molecules colloid with each other then no energy is gained or lost by them. Also, these molecules occupy negligible amount of volume as compared to the volume of the container in which they are placed.

Moreover, as there is no energy loss taking place so, these molecules of gas undergo perfect elastic motion.

Therefore, we can conclude that all of the above given options are true according to the kinetic theory of gases.

5 0

3 years ago

What is chemistry about

mr Goodwill [35]

Answer:

Explanation:

Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything.

6 0

3 years ago

Read 2 more answers

Isotopes of the same element differ in their ____.

Zarrin [17]

Isotopes of the same element differ in their "Atomic masses"

Hope this helps!

5 0

4 years ago

Which characteristic is unique to archeabacteria?​

Which characteristic is unique to archeabacteria?