A sample of nitrogen is collected over water at 20°C. The vapor pressure of water at 20°C is 18 mmHg. What is the partial pressure of the nitrogen if the total pressure is 21 mmHg?

Question

A sample of nitrogen is collected over water at 20°C. The vapor pressure of water at 20°C is 18 mmHg. What is the partial pressure of the nitrogen if the total pressure is 21 mmHg?

1 Answer

Impact of this question

4492 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-02-26T11:39:03

Not very much..........

Explanation:

$P_{total} = P_{N_{2}} + P_{SVP}$ $P_"total"=P_(N_2)+P_"SVP"$

Now, we are given that $P_{total} = 21 \cdot m m \cdot H g$ $P_"total"=21*mm*Hg$ , and further that $P_{SVP}$ $P_"SVP"$ , $the saturated vapour pressure of water$ $"the saturated vapour pressure of water"$ at this temperature, $= 18 \cdot m m \cdot H g$ $=18*mm*Hg$ .

So $P_{N_{2}} = P_{total} - P_{SVP} = (21 - 18) \cdot m m \cdot H g = 3 \cdot m m \cdot H g$ $P_(N_2)=P_"total"-P_"SVP"=(21-18)*mm*Hg=3*mm*Hg$ .

Science

Math

Humanities

... and beyond

A sample of nitrogen is collected over water at 20°C. The vapor pressure of water at 20°C is 18 mmHg. What is the partial pressure of the nitrogen if the total pressure is 21 mmHg?

1 Answer

Explanation:

Related questions

Impact of this question