A sample of a pure substance is placed in a sealed, rigid container and the pressure is measured as — States of Matter Chemistry Question
Question
A sample of a pure substance is placed in a sealed, rigid container and the pressure is measured as a function of temperature. Which is the best explanation for the result shown?
A.
At lower temperatures, the substance is a mixture of solid and vapor, while at 60 °C the solid melts to give a mixture of liquid and vapor.
B.✓ Correct
At lower temperatures, the substance is a mixture of liquid and vapor, while at 60 °C only liquid is present.
C.
At lower temperatures, the substance is a mixture of liquid and vapor, while at 60 °C only a supercritical fluid is present.
D.
At lower temperatures, the substance consists of vapor only, while at 60 °C only a supercritical fluid is present.
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