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Zepler [3.9K]
3 years ago
10

The gas in the piston is at constant temperature. A student increases the pressure on the piston from 2 atm to 3 atm. The observ

ation will be summarized in a row of the incomplete table below.
1
Boyle's law
?
?
2
Charles’s law
?
?
3
Gay-Lussac’s law
?
Volume, moles of gas
4
Combined gas law
?
?


Which row of the table and which observation would the student fill?

row 1, volume decreases when temperature decreases
row 1, volume decreases when pressure increases
row 3, volume decreases when temperature decreases
row 3, volume decreases when pressure increases
Chemistry
2 answers:
Andreas93 [3]3 years ago
8 0

Answer: B

Explanation:

Alborosie3 years ago
7 0
<span>The answer is row 1, volume decreases when pressure increases. The given condition is a demonstration of Boyle's Law, which tells that the volume of a given amount of gas reserved at constant temperature is contrariwise proportional to the pressure. When the pressure is augmented by pushing the piston downwards, the gas will be compacted and its volume will decrease.</span>
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How many moles are in 1.20 times 10^25 atoms of phosphorus
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19.927 moles are in 1.20 times 10^{25} atoms of phosphorus.

<h3>What are moles?</h3>

A mole is defined as 6.02214076 ×10^{23} of some chemical unit, be it atoms, molecules, ions, or others.

1 mole of any substance contain Avogadro's number of molecules so we can calculate the number of moles by dividing the provided number of atoms over Avogadro's number to obtain the number of moles .

Moles= \frac{Atoms}{\;Avogadro's \;number }

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