The vapor pressure of liquid heptane, C-H16, is 40.0 mm Hg at 295 K A sample of
ID: 578035 • Letter: T
Question
The vapor pressure of liquid heptane, C-H16, is 40.0 mm Hg at 295 K A sample of C,His is placed in a closed, evacuated C-His is in the vapor phase and that the following statements are correct? er of constant volume at a temperature of 451 K. It is found that all of the pressure is 57.0 mm Hg. If the temperature in the container is reduced to 295 K, which of the contain Choose all that apply O Liquid heptane will be present. The pressure in the container will be 40 0 mm Hg. L : No condensation will occur. Some of the vapor initially present will condense. Only heptane vapor will be presentExplanation / Answer
ANSWER:
The following statements will aply:
1) Liquid heptane will be present, because heptane exists in liquid form at 295K as given in the question.
2) The preesure in the container will be 40mmHg,
3) some of the heptane already present will condense. Some heptane will be in liquid state and some in vapour state.
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