Examlex
Which of the following substances would you predict to have the highest ΔHvap?
Vesicular Lava
Lava characterized by a rough, bubbly texture due to the escape of gases during solidification.
Scoria Cones
Volcanic cones made up of loose, dark-colored volcanic fragments called scoria, typically formed around vents of basaltic lava.
Volcanic Ash
Fine particles of rock and volcanic glass created by explosive volcanic eruptions.
Nonvesicular Basalt
Basalt rock characterized by a solid and dense structure without vesicles, which are small cavities formed by gas bubbles.
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