Question

Ans. 0.12 mollare)
Q. 2. The partial pressure of ethane over a saturated solution containing 6.56 10^-2 g of ethane is 1 bar. If
the solution contains 5 * 10^-2g of ethane, the what shall be the partial pressure of the gas?
Ans. P2=0.762 bar)​

Answer 1

Answer:

the partial pressure of gas will be 7.6 bar.

Explanation:

According to Henry's law, the solubility of gas in a liquid is directly proportional to the pressure of the gas.

X=Kh×P

X is the mole fraction of gas, Kh is the Henry's law constant and P is the partial pressure of the gas.

Also mole fraction of ethane will be directly proportional to its mass.

WP′=W′P

W is the mass of ethane in first solution and P is the partial pressure of ethane in first solution.

W′ is the mass of ethane in second solution and P′ is the partial pressure of ethane in second solution.

6.56×10−3×P′=5.00×10−2×1P′=7.6

Hence, the partial pressure of gas will be 7.6 bar.