Keep the Heat B/Thermodynamics C

[mattclaridge]

I've derived an equation that accounts for initial temp, ambient temp, volume of water, and time. All in one single equation that is based on a value taken from only one calibration plot. Though I'm too selfish to post it

This. I shall find this.

[istou]

Does anyone know if we can use tinfoil in our keep the heat boxes? I saw a whole bunch of teams with it or some other reflective stuff at regionals. I think it might help me if I could use it.

Seriously, do we need to have a sticky about this? Look in the rules and the rest if this thread, the answer should not be hard to find

To make it simple - you can use reflecting foils, their very useful.

[bearasauras]

Hi Bearasauras,
Thank you for your response. I will check with our head coach on Friday. I very much appreciate your help with taking care of that topic, Peter? or Allen?:)
Anyway, it was a great event! If you need any help in the future, please let me know. Maybe some lab equipment or test preparation/check, etc.
Thank you!

Thanks Igor and thank you for supporting this program.
Peter

[istou]

I've derived an equation that accounts for initial temp, ambient temp, volume of water, and time. All in one single equation that is based on a value taken from only one calibration plot. Though I'm too selfish to post it

This. I shall find this.

I would suggest rather than trying to fit it all with one equation to try and measure points every 25 ml and every 10 degrees. It is about 2 days of work but well worth it.
Don't forget to measure a temperature right after the liquid is poured into the beaker. That helped us a lot!

[istou]

Hi Bearasauras,
Thank you for your response. I will check with our head coach on Friday. I very much appreciate your help with taking care of that topic, Peter? or Allen?:)
Anyway, it was a great event! If you need any help in the future, please let me know. Maybe some lab equipment or test preparation/check, etc.
Thank you!

Thanks Igor and thank you for supporting this program.
Peter

Thanks to you too, Peter! You are doing a huge thing for smart students! Good luck next year!

[maggeey]

Does anyone know if we can use tinfoil in our keep the heat boxes? I saw a whole bunch of teams with it or some other reflective stuff at regionals. I think it might help me if I could use it.

To make it simple - you can use reflecting foils, their very useful.

[/quote]

Thanks istou, this is my first time on this event. I just looked it up and aluminum is a metal, so I'm thinking I can't use tin foil. Is there reflecting foils that aren't plastic or metal we can use?

[hmcginny]

Does anyone know if we can use tinfoil in our keep the heat boxes? I saw a whole bunch of teams with it or some other reflective stuff at regionals. I think it might help me if I could use it.

To make it simple - you can use reflecting foils, their very useful.

Thanks istou, this is my first time on this event. I just looked it up and aluminum is a metal, so I'm thinking I can't use tin foil. Is there reflecting foils that aren't plastic or metal we can use?

Note that the words metal and plastic are in parentheses in reference to foams. That means no metal foams, plastic foams etc... not that you can't use metal or plastic. Aluminum/tin foil is fine to use.

[istou]

Does anyone know if we can use tinfoil in our keep the heat boxes? I saw a whole bunch of teams with it or some other reflective stuff at regionals. I think it might help me if I could use it.

To make it simple - you can use reflecting foils, their very useful.

Thanks istou, this is my first time on this event. I just looked it up and aluminum is a metal, so I'm thinking I can't use tin foil. Is there reflecting foils that aren't plastic or metal we can use?[/quote]

You can use standard aluminum folder you can buy at any supermarket. Make sure a beaker does not see any not foiled area. Minimize amount of air around the beaker. Make sure you have 2-3 layers of cardboard or some other insulator above the beaker and keep the 1.5 cm hole open. Add some bids under the beaker.
We got one 1st and two 3d places with our thermos at world toughest competition.

[maggeey]

You can use standard aluminum folder you can buy at any supermarket. Make sure a beaker does not see any not foiled area. Minimize amount of air around the beaker. Make sure you have 2-3 layers of cardboard or some other insulator above the beaker and keep the 1.5 cm hole open. Add some bids under the beaker.
We got one 1st and two 3d places with our thermos at world toughest competition.[/quote]

Okay, thanks.

[ScienceOlympian]

Any topics I should study for state? Other than the rules.
What thermodynamic formulas are needed?
Any good sites?
Any specific sites on the history of Thermodynamics?