Back to forum
Verbal·Expression of Ideas·Rhetorical Synthesis
hard
While researching a topic, a student has taken the following notes:
  • The Leidenfrost effect occurs when liquid touches a solid surface significantly hotter than the liquid’s boiling point, forming a vapor layer that insulates the liquid before eventually collapsing.
  • Scientists long hypothesized that the temperatures at which Leidenfrost vapor forms and collapses vary depending on molecular variations in surfaces and liquids.
  • A 2023 study confirmed that the vapor’s formation temperature varies depending on molecular variations in surfaces and liquids.
  • The study also found that the vapor’s collapse temperature was “nearly independent of material and fluid properties, contrary to previous theories.”
  • The vapor’s collapse temperature remained consistent (around 140°C).
The student wants to refute a scientific assumption about the Leidenfrost effect. Which choice most effectively uses relevant information from the notes to accomplish this goal?
A
Contrary to the hypothesis that vapor layer formation temperature is dictated by molecular variation, a 2023 study confirmed that the temperature at which the vapor layer forms depends on the surface and liquid used.
B
Though the vapor layer created by the Leidenfrost effect can be formed at a range of temperatures, the temperature at which the layer collapses varies depending on material and fluid properties.
C
Countering previous hypotheses, a recent study found that Leidenfrost vapor’s collapse temperature does not vary depending on material and fluid properties.
D
Scientists had hypothesized that the formation temperature of Leidenfrost vapor depends on variations in surfaces and liquids used, but a 2023 study confirmed that the collapse temperature remains consistent.