Dichloromethane (CH2Cl2, M = 84.93) is a volatile liquid with a vapor pressure of 0.53 atm at 24 °C. — Gases Chemistry Question
Question
Dichloromethane (CH2Cl2, M = 84.93) is a volatile liquid with a vapor pressure of 0.53 atm at 24 °C. 13.8 g of dichloromethane is introduced into a 5.0-L evacuated container maintained at 24 °C. Which is the best description of the system at equilibrium?
A.
One-third of the CH2Cl2 has evaporated.
B.✓ Correct
Two-thirds of the CH2Cl2 has evaporated.
C.
All of the CH2Cl2 has evaporated to give a pressure of 0.53 atm.
D.
All of the CH2Cl2 has evaporated to give a pressure of 0.79 atm.
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