Predict and EXPLAIN which compound you would think would have a) the highest rate of evaporation...
Predict and EXPLAIN which compound you would think would have
a) the highest rate of evaporation
b) the greatest temperature change upon evaporation.
These are the compounds:
n-pentane
n-butanol
ethylene glycol
acetone
tertiary-butanol
Hydrogen oxide
n-hexane
n-propanol
methanol
ethanol
Homework Answers
a) The highest rate of evaporation will be for compound which has lowest boiling point among given compounds. So, n-pentane with boiling point of 36.1℃ will have highest rate of evaporation.
b) Evaporation occurs at room temperature (around 25℃). So, the greatest temperature change will be for compound which have highest boiling point.
High boiling point - room temperature = greater temperature change
Low boiling point - room temperature = lesser temperature change.
So, ethylene glycol with b.pt. = 197.6℃ will have greatest temperature change.
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