Thermodynamics B/C

[jgrischow1]

I realize this isn't the place for rules clarifications, FAQs, etc. That being said, we have ordered two different sets of nominal 250 mL beakers online. Upon unboxing, one set was graduated to 200 mL and the other to 300 mL. Are both illegal?

[LittyWap]

For those of you dying to get your hands on a challenging test, I can assure you one will be created imminently, (over Winter Break). If you wish, I can even develop rankings for scores on the tests for all to see. Let me know how you would like this to be done and importantly, what topics you think I should test on. I have more information than I can handle.

[Coach Marz]

I realize this isn't the place for rules clarifications, FAQs, etc. That being said, we have ordered two different sets of nominal 250 mL beakers online. Upon unboxing, one set was graduated to 200 mL and the other to 300 mL. Are both illegal?

If your 250mL beaker shows a mark for 200mL that is most likely a 250mL beaker. It just isn't accurate to 250mL

[arv101]

For those of you dying to get your hands on a challenging test, I can assure you one will be created imminently, (over Winter Break). If you wish, I can even develop rankings for scores on the tests for all to see. Let me know how you would like this to be done and importantly, what topics you think I should test on. I have more information than I can handle.

Hey this sounds like a great idea! I think you should just go through the topics in the rules and just make up questions based on that. Also when signing up you could require to submit like 3 questions each.

[jonathanzhang53]

When it asks for stuff like thermal conductivity, is it applicable on the test to be quizzed on thermal resistivity, which is it's reciprocal?

[arv101]

When it asks for stuff like thermal conductivity, is it applicable on the test to be quizzed on thermal resistivity, which is it's reciprocal?

Although I haven't seen thermal resistivity on a test, I think you should know thermal resistivity. Technically it still counts as heat transfer.

[arv101]

I hope this is okay to ask,

This is my first year of doing thermodynamics and I am just starting to experiment with different devices. What are some of the ending temperatures/scores anyone got from their device after 30 minutes. So far, the variables I've tested with so far are using 150 ml, starting at 90 C, no ice water, and for 30 minutes. I just want to see where I am and around where everyone has got, or maybe really good scores

By the way, my highest temperature is 63.3 degrees C

Hey if you are willing to share, what are you guys getting with the conditions from above? We got 64 C, what are you guys getting.

[JoeyC]

I hope this is okay to ask,

This is my first year of doing thermodynamics and I am just starting to experiment with different devices. What are some of the ending temperatures/scores anyone got from their device after 30 minutes. So far, the variables I've tested with so far are using 150 ml, starting at 90 C, no ice water, and for 30 minutes. I just want to see where I am and around where everyone has got, or maybe really good scores

By the way, my highest temperature is 63.3 degrees C

Hey if you are willing to share, what are you guys getting with the conditions from above? We got 64 C, what are you guys getting.

Our highest was (150ml at 90 C) 64 degrees. I find that the best way to do predictions is to:
1.)Gather data for each water interval ( 50,75,100,125,150 at invitationals B division)
2.)At each water interval, collect data for temperatures 60,70,80, and 90 degrees Celsius temperatures
3.)Get out a graphing calculator or other software and find the quadratic regression curve for each water interval (starting temperature v ending temperature)
4.)Use quadratic equation and generate table for each amount of water

[arv101]

I hope this is okay to ask,

This is my first year of doing thermodynamics and I am just starting to experiment with different devices. What are some of the ending temperatures/scores anyone got from their device after 30 minutes. So far, the variables I've tested with so far are using 150 ml, starting at 90 C, no ice water, and for 30 minutes. I just want to see where I am and around where everyone has got, or maybe really good scores

By the way, my highest temperature is 63.3 degrees C

Hey if you are willing to share, what are you guys getting with the conditions from above? We got 64 C, what are you guys getting.

Our highest was (150ml at 90 C) 64 degrees. I find that the best way to do predictions is to:
1.)Gather data for each water interval ( 50,75,100,125,150 at invitationals B division)
2.)At each water interval, collect data for temperatures 60,70,80, and 90 degrees Celsius temperatures
3.)Get out a graphing calculator or other software and find the quadratic regression curve for each water interval (starting temperature v ending temperature)
4.)Use quadratic equation and generate table for each amount of water

What are you using to heat up the water. Also, when we test, the time it takes from pouring the hot water into our beaker and putting it in our device, the temperature drops significantly. For example, say I heat up the water to about 93 C, in 5 seconds out of the pot, it goes down to 86 C. So, how are you guys testing.

[Alex-RCHS]

Hey if you are willing to share, what are you guys getting with the conditions from above? We got 64 C, what are you guys getting.

Our highest was (150ml at 90 C) 64 degrees. I find that the best way to do predictions is to:
1.)Gather data for each water interval ( 50,75,100,125,150 at invitationals B division)
2.)At each water interval, collect data for temperatures 60,70,80, and 90 degrees Celsius temperatures
3.)Get out a graphing calculator or other software and find the quadratic regression curve for each water interval (starting temperature v ending temperature)
4.)Use quadratic equation and generate table for each amount of water

What are you using to heat up the water. Also, when we test, the time it takes from pouring the hot water into our beaker and putting it in our device, the temperature drops significantly. For example, say I heat up the water to about 93 C, in 5 seconds out of the pot, it goes down to 86 C. So, how are you guys testing.

The rules (high school at least) say you are allowed to measure the temperature of the water after pouring it in. I would measure it after pouring it into your device both while testing and at competitions.