Multiple Choice
Which of the following statements is correct?
A) When the temperature of a sample of liquid is increased, the molecules move faster, but there is no change in the vapor pressure of the sample.
B) The melting point of metallic sodium is 97.8oC, so at a temperature of 25oC, it is a liquid.
C) If you cook an egg on a mountain, it will require a short cooking time, due to the high elevation.
D) When liquids evaporate, it requires an input of energy from the surroundings, so the surroundings become warm.
E) Nitrogen gas has a boiling point of -196oC, so if it is cooled to -200oC, it condenses.
Correct Answer:

Verified
Correct Answer:
Verified
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