Question
Question: A sample of air is saturated with benzene (vapor pressure = 100 mm Hg at 298 K) at 298K, 750mm Hg pr...
A sample of air is saturated with benzene (vapor pressure = 100 mm Hg at 298 K) at 298K, 750mm Hg pressure. If it is isothermally compressed to one third of its initial volume, the final pressure of the system is
A
2250 torr
B
2150 torr
C
2050 torr
D
1950 torr
Answer
2050 torr
Explanation
Solution
Pressure of air = 750 – 100 = 650 mm of Hg
on compressing Pf = Hg 650 × 3 mm of Hg = 1950 mm of Hg
so PT = (1950 + 100) = 2050 mm of Hg