The partial pressure of ethane over a saturated solution containing 6.56×10−2g of ethane in water is 1 bar. If the solution contains 5×10−2g of ethane, then what shall be the partial pressure of the gas ?
Assume: nH2O>>nethane
A
0.2bar
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B
1.55bar
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C
0.76bar
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D
2bar
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Solution
The correct option is C0.76bar According to Henry's Law Pgas=KH×χgas