boiling point of isopropyl alcohol
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Question:Does it have to do with polarity? or intermolecular forces? or what?
Answers:water>iso propyl alcohol>acetone>hexane..
both isopropyl alcohol and water has hydrogen bonding....but hydrogen bonding in isopropyl alcohol is hindered because of the the two methyl groups...so boiling point is lower than water...
acetone has only dipole -dipole interaction and no hydrogen bonding...so its boiling point is lower than both water and isopropyl alcohol....
hexane is a non-polar compound so its boiling point will be less than water,iso propyl alcohol,and acetone...
see this link for details about hydrogen bonding ---
Question:I need help with this lab write up
Im not quite sure how to start this out and also any ideas for the procedure..
P.s. we have to measure the temperature in Celsius every 30 seconds for both substances
Answers:A hypothesis is an educated guess. Isopropyl alcohol boils at a lower lower temp
Answers:Melting point -89 C (185 K)
Boiling point 82.3 C (355 K)
The above assumes that the alcohol being used is 100 % pure. Actually, it
is not easy to purchase 100 % isopropyl alcohol because what's available
in the drugstore contains water that must be factored into the calculation .
Question:What is the evaporation rate of water, ethanol, isopropyl alcohol, and acetone? I need to know the order in which they evaporate.
Answers:gotta look at their boiling points, water = 100c , ethanol 78.4c, isopropyl alcohol = 82.3c, and acetone = 56.53c
so from this you can judge that the order is acetone, ethanol, isopropyl alcohol, water
An Isopropyl 99 Alcohol Stove :This video describes an isopropyl alcohol stove that I have designed. I am using this as my benchmark or baseline for further isopropyl stove that I development.. The stove has demonstrated that isopropyl can be burned cleaning without creating a significant amount of soot. This stove has not been optimized for fuel efficiency, That being said, the stove boiled 2 cups of 70 F water using 16 ml of Iso 99. The average boil time was 7:30. Please look at the stove design and help expand on the overall performance (let's raise the bar!). As alway, your comments, advice and insight are greatly appreciated.
A clean burning isopropyl alcohol stove concept :This videos details my recent discovery on how I made an isopropyl alcohol stove burn cleanly (no soot). I do not fully understand thescience as to how it works and I am looking for people to give guidence and advice on what the key variables that control a clean burning flame. From there, I hope to optimize the stove design. I have been using both Iso 91 and Iso 99 with good results. I will measure boil times after I have a better understanding of the overall system. I look forward to your comments.