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Angelina_Jolie [31]
2 years ago
7

Helium and methane gases are mixed together in a container. what is the ratio of their root-mean-square speeds, i. e. (vrms,heli

um) / (vrms,methane) ?
Chemistry
1 answer:
Sati [7]2 years ago
4 0

Root mean square speed is the estimation of the effect of temperature and weight on kinetic energy. The root means square speed for a mixture of helium and methane is 2. Thus, option d is correct.

<h3>What is the root mean square speed?</h3>

Root mean square speed is the estimation of the square root of the mean value of the squared speeds of the individual gas particles in the mixture.

As it is known that,

Root mean square speed = √{3RT/M}

Where T is constant temperature and R is gas constant. The molecular mass of helium gas is 4 g/mol and of methane is 16 g/mol.

Vrms = √{3RT/M}

For helium, Vrms = √{3RT/4}

And, for methane = Vrms = √{3RT/16}

So, (Vrms,helium) / (Vrms,methane) = 4 / 2 = 2

Therefore, option d. 2 is the root-mean-square speed for the mixture.

Learn more about root-mean-square speeds here:

brainly.com/question/13095222

#SPJ4

Your question is incomplete, but most probably your full question was, Helium and methane gases are mixed together in a container. what is the ratio of their root-mean-square speeds, i. e. (Vrms, helium) / (Vrms, methane)?

  • 1/2
  • 1
  • 0
  • 2
  • cannot tell
  • 4
  • 1/4
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Explanation:

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Mass of isotope 3 = 23

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Formula used for average atomic mass of an element :

\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})

A=\sum[(20\times 0.905+(22\times 0.08)+(23\times 0.015]

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3 years ago
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Answer:

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Answer:

The new volume is 5.913*10^4 L

Explanation:

Step 1: Write out the formula to be used:

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Step 2: write out the values given and convert to standard unit's where necessary

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What will be the amount of sugar in milligrams if the size of the milk chocolate bar is reduced from 11.630 g to 4.000 g ?
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The amount of sugar is 2621 mg

Why?

The complete question is:

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Have a nice day!

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