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krok68 [10]
3 years ago
13

a gas has a pressure of 0.410 atm and a volume of 32L. At what pressure would the volume of the gas change to 28L?

Chemistry
1 answer:
densk [106]3 years ago
8 0

Answer:

The new pressure is 0,469 atm

Explanation:

We apply Boyle Mariotte's Law: for a given mass of gas at constant temperature, its pressure and volume vary inversely proportionally (the higher the pressure, the lower the volume and vice versa):

P1 x V1 = P2 xV2               We solve P2:

P2 = (P1 x V1)/V2

P2= (0,410 atm x 32 L) / 28 L

<em>P2= 0,469 atm</em>

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How does a sample of hydrogen at 10 °C compare to a sample of hydrogen at 350 K?
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Answer: -

The hydrogen at 10 °C has slower-moving molecules than the sample at 350 K.

Explanation: -

Temperature of the hydrogen gas first sample = 10 °C.

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For the second sample, the temperature is 350 K.

Thus we see the second sample of the hydrogen gas more temperature than the first sample.

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So higher the temperature of a gas, more is the kinetic energy and more is the movement speed of the gas molecules.

Thus the hydrogen at 10 °C has slower-moving molecules than the sample at 350 K.

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The half of the moon facing the sun is always lit, but the different phases happen because:
zvonat [6]

Answer:

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Explanation:

Unlike the sun, the moon orbits the Earth. This is the reason why we see the <em>different phases of the moon.</em> The reflection of the moon is being illuminated back to us with the help of the sun. So, as the moon circles the Earth, we only see parts of the lit side. Such changes helps us see the moon in different phases such as<em> </em>the <em>Third Quarter, Crescent, New Moon, Full Moon, etc.</em>

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3 years ago
I really need help pls, will pay anything
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Explanation:

For the first part,

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Unknown:

Number of moles of N₂  = ?

Solution:

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         2 moles of NH₃ is produced from 1 mole of N₂

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ii.

Given parameters:

Number of moles of sulfur = 2.4moles

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Mass of sulfur  = ?

Solution:

The number of moles of any substance can be found using the expression below;

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6 0
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Owing to the arrangement of ions in NaCl, the structure has a high melting point and crystalline structure.

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As a result of this order in the crystal, the resultant sodium chloride structure has a high melting point and crystalline structure.

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