question_answer 25)

The partial pressure of ethane over a saturated solution containing 6.56 x 10–2 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:

Applying the Henry's Law in = kH x p In the first case, 6.56 x 10-2 g = kH x 1 bar or kH = 6.56 x 10-2 g bar-1 Put kH value in the second case 5.00 x 10-2 g = (6.56 x 10-2 g bar-1) x p