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Question

The vapor pressure of liquid methyl acetate, CH3COOCH3, is 40.0 mmHg at 265 K. A sample of CH3COOCH3 is placed in a closed, evacuated container at a temperature of 418 K. It is found that all of the CH3COOCH3 is in the vapor phase and that the pressure is 77.0 mm Hg. If the temperature in the container is reduced to 265 K, which of the following statements are correct? Choose all that apply.