SELECT * FROM question_mgmt as q WHERE id=1572 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=57 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)

Question:

The partial pressure of ethane over a solution containing 6.56 x 10-3 g of ethane is 1 bar. If the solution contains 5.00 x 10-2 g of ethane, then what shall be the partial pressure of the gas?

Answer:

According to Henry’s law

.m = k x p

Substituting the given values in the above equation.

We get

6.56 x10-3 = k x 1

Or

k = 6.56 x10-3

Now when m = 5 x 10-2,

Then again substituting the given values in Henry’s law equation, we get

 5 x 10-2 = 6.56 x10-3 x p

Or

p = 7.62 bar


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