Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Homework Help
Introductory Physics Homework Help
Do you need to account for the water heating up to the boiling point?
Reply to thread
Message
[QUOTE="jbriggs444, post: 6834724, member: 422467"] If one is doing careful calorimetry -- ROFL, not in this situation, clearly. Then one should be worried about more than just the possibility of water evaporating below 100 degrees C. What if the water ends up super-heated? Could we lose 10 ml by surface evaporation? Could we have ordinarly boiling followed by super-heating? Could we lose 10 ml by evaporation before, during and after we pour the water out? If we are being this boneheaded with the calorimetry, goodness knows how casual we are being with everything else. What if part of the microwave energy goes into heating the already vaporized water? Does that count? What is the [average] temperature of the resulting vapor anyway? Given that the water vapor will be condensing out on the microwave walls, exactly how were we planning to measure that temperature? What about the energy lost to the container? Apparently microwave oven size is going to be 15 liters or more. Ten ml is about ten grams is about half a mole of stuff with a molecular weight of 18. About 11 liters. So we will not be filling the microwave with steam at ambient pressure. Nor will we be heating the walls to 100 C. [/QUOTE]
Insert quotes…
Post reply
Forums
Homework Help
Introductory Physics Homework Help
Do you need to account for the water heating up to the boiling point?
Back
Top