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andreyandreev [35.5K]
4 years ago
8

Calculate the number of moles of oxygen in a 16.3-L tank if the pressure is 331 kPa and the temperature is 197.4°C.

Chemistry
1 answer:
Artemon [7]4 years ago
6 0
<h3><u>Answer</u>;</h3>

= 1.38 moles

<h3><u>Explanation</u>;</h3>

Using the equation;

PV = nRT , where P is the pressure,. V is the volume, n is the number of moles and T is the temperature and R is the gas constant, 0.08206 L. atm. mol−1.

P= 331 000Pa or 3.267 atm T= 197.4 +273 = 470.4, V = 16.3 L

Therefore;

n = PV/RT

  = (3.267 × 16.3)/(470.4 × 0.08206)

  = 1.3796 moles

   ≈ 1.38 moles

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When rocks are buried by the materials up to a greater depth, then the confining pressure increases significantly. This results in the ductile behavior of the rocks at such depth. These rocks are present in the ductile region where the depth is about more than 20 to 30 km. Here the rocks are subjected to extremely high pressure and temperature conditions, which favors the transformation of rocks into more higher-grade metamorphic rocks. It is also enhanced due to the geothermal gradient.

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