The pressure of gases inside a rigid container is $99000 kPa$ $"99000 kPa"$ . The composition of the gases is $68 %$ $68%$ nitrogen gas, $23 %$ $23%$ oxygen gas, and $9 %$ $9%$ neon gas. What is the partial pressure of each gas?

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Answer 1 · 2017-04-04T22:08:39

See the explanation below.

Multiply the percentage in decimal form of each gas by $99000 kPa$ $"99000 kPa"$ .

Nitrogen
$0.68 \times 99000 . kPa$ $0.68xx99000color(white)(.)"kPa"$ $=$ $=$ $67320 kPa$ $"67320 kPa"$

Oxygen
$0.23 \times 99000 . kPa$ $0.23xx99000color(white)(.)"kPa"$ $=$ $=$ $22770 kPa$ $"22770 kPa"$

Neon
$0.09 \times 99000 . kPa$ $0.09xx99000color(white)(.)"kPa"$ $=$ $=$ $8910 kPa$ $"8910 kPa"$

The sum of the partial pressures equals the total pressure 99000 kPa.

$67320 kPa + 22770 kPa + 8910 kPa = 99000 kPa$ $"67320 kPa" + "22770 kPa" + "8910 kPa"="99000 kPa"$

The pressure of gases inside a rigid container is 99000 kPa"99000 kPa". The composition of the gases is 68%68% nitrogen gas, 23%23% oxygen gas, and 9%9% neon gas. What is the partial pressure of each gas?