A sample of octane in equilibrium with its vapor in a closed 1.0-L container has a vapor pressure of 50.0 torr at 45C. The container’s volume is…

A sample of octane in equilibrium with its vapor in a closed 1.0-L container has a vapor pressure of 50.0

torr at 45°C. The container’s volume is increased to 2.0 L at constant temperature and the liquid/vapor

equilibrium is reestablished. What is the vapor pressure?

A.> 50.0 torr

B. 50.0 torr

C. 25.0 torr

D.The mass of the octane vapor is needed to calculate the vapor pressure.

E.The external pressure is needed to calculate the vapor pressure

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