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Colt1911 [192]
3 years ago
15

Which of the following is NOT true of elliptical galaxies?

Chemistry
1 answer:
Anon25 [30]3 years ago
4 0

Answer:

its b there circle e not oval

Explanation:

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Two moles of gas A spontaneously convert to 3 moles of gas b in a container where the temperature and pressure are held constant
erica [24]

At constant temperature and pressure, If the amount of gas increases to the given value, its volume also increases to 20.85L.

<h3>What is Avogadro's law?</h3>

Avogadro's law states that "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules."

It is expressed as;

V₁/n₁ = V₂/n₂

Given the data in the question;

  • Initial amount of gas n₁ = 2moles
  • Initial volume v₁ = 13.9L
  • Final amount of gas n₁ = 3moles
  • Final volume v₂ = ?

V₁/n₁ = V₂/n₂

V₁n₂ = V₂n₁

V₂ = V₁n₂ / n₁

V₂ = (13.9L × 3moles) / 2moles

V₂ = 41.7molL / 2mol

V₂ = 20.85L

At constant temperature and pressure, If the amount of gas increases to the given value, its volume also increases to 20.85L.

Learn more about Avogadro's law here: brainly.com/question/15613065

#SPJ1

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2 years ago
Help me plsssss ))):
Marysya12 [62]

Answer:

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crushing an ice cube can be redone by freezing it again in its position

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What is the pH if the [H+] concentration is 3 x10^-13​
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pH = 12.52

Explanation:

Given that,

The [H+] concentration is 3\times 10^{-13}.

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We know that, the definition of pH is as follows :

pH=-log[H^+]

Put all the values,

pH=-log[3\times 10^{-13}]\\\\pH=12.52

So, the pH is 12.52.

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Thermal energy will flow from the person to the desk
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