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Interstellar space contains of about 1 atom/cm3. (a)

Chapter 5, Problem 132P

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QUESTION:

Interstellar space contains mostly hydrogen atoms at a concentration of about 1 \(\mathrm{atom} / \mathrm{cm}^{3}\). (a) Calculate the pressure of the H atoms. (b) Calculate the volume (in liters) that contains 1.0 g of H atoms. The temperature is 3 K.

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QUESTION:

Interstellar space contains mostly hydrogen atoms at a concentration of about 1 \(\mathrm{atom} / \mathrm{cm}^{3}\). (a) Calculate the pressure of the H atoms. (b) Calculate the volume (in liters) that contains 1.0 g of H atoms. The temperature is 3 K.

ANSWER:

Step 1 of 3

(a)

Here, we are going to calculate the pressure of the H atoms.

We know, 1.0 mol H = 6.022

1 cm3 =1.0 mL

1000 mL = 1.0 L

Therefore,

=

The pressure of H can be calculated from the ideal gas equation.

 

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