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4B50.u1 - Oceanic CO2 Storage and Global Warming Effects

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​4B50.u1 - Oceanic CO2 Storage and Global Warming Effects

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Title4B50.u1 - Oceanic CO2 Storage and Global Warming Effects
Objective

To demonstrate how quickly an environment can heat up due to the amount of CO2 that is present and how the stored CO2 that is in the ocean is released in the atmosphere when the environment reaches a high temperature​.

StatusAvailable
Assembly Instructions

Two sets of beakers are needed for this demonstration.  One set are 1000-mL tall beakers that are kept with the supplies for this demonstration.  They each have a cork assembly made to fit each individual beaker, so make sure you use the correct cork for the correct beaker.  The second set of beakers are the 1000-mL short beakers that need to be grabbed from the glassware cabinet. 

First connect a bench clamp to an L-shaped bench rod.  Two rod clamps ​are used to hold two 3-fingered clamps vertically.  Two 250-mL graduated cylinders are inverted into the 1000-mL short beakers and filled with dyed water.  It is important to have as little an air bubble in the graduated cylinders as possible.  The bases of the graduated cylinders are held in place by the 3-fingered clamps, but wait until the end to clamp them into the assembly. 

A second set of beakers are used to house our "oceans".  These are the 1000-mL tall beakers with fitted corks.  Each cork has a port hole for the thermocouple probe, as well as a feeder hose that will collect all of the CO2 gas that is released during our experiment.  To prepare the "oceans" complete the following stes:

1. Fill each tall beaker with 200-mL of tap water.
2. Fill each tall beaker with 200-mL of carbonated water.
3. Seal one of the tall beakers with the provided cork assembly.
4. Feed the sealed beaker's feeder tube into one of the graduated cylinders so that the gas that is released will be collected by the graduated cylinder.
5. Add approximately 200-mL of ice into the remaining beaker and seal that cork assembly.  COMPLETE THIS STEP JUST BEFORE OPERATION.
6. Feed the feeder tube for the beaker with the ice in it into the other graduated cylinder.
7. Clamp the bases of the graduated cylinders into the 3-fingered clamps.
8. Place both beakers onto the pre-heated hot plate and observe.

A laptop is used to record temperature data of the two "environments" we are creating. The software used is TracerDAQ, with the thermocouple probes plugged into channels 0 and 1. Also, a camera is used to view the inverted graduated cylinders so the students can observe the amount of CO2 that is collected by each environment.

Setup Time15
Operation Time15
Preview Time15
Operation Instructions

​**NEED AT LEAST A 24 HOUR NOTICE TO USE THIS DEMONSTRATION**

This demonstration compares an "ocean" with water and carbonated water vs. an "ocean" with water, carbonated water, and ice present.  A laptop is used to collect the temperature data of these two environments as they are exposed to a increase in temperature over time.  Also, an inverted graduated cylinder filled with liquid is used to gauge the amount of CO2 that is released in each of these environments as time passes and the heat rises. 

With the apparatus set up as described in the Assembly instructions, the only steps that will need to be completed by the lecturer are as follows:

1. Add approximately 200-mL of ice into the unsealed beaker and seal that cork assembly. COMPLETE THIS STEP JUST BEFORE OPERATION.
2. Feed the feeder tube for the beaker with the ice in it into the other graduated cylinder.
3. Clamp the bases of the graduated cylinders into the 3-fingered clamps.
4. Place both beakers onto the pre-heated hot plate and observe the results.

This demo will need to continue to run for a period of time in order to see the full effect.  Depending on the amount of ice you put into the second "ocean" will determine how long the demo should be ran for.  At least half an hour is needed.

ExportableNo
Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsCaution - HOT
Analysis/Information
Category4 Thermodynamics
Subcategory4B - Heat and the First Law
KeywordsCO2, storage, greenhouse effect, global warming
Construction Information
The cork assemblies for the tall beakers were machined.  It is important to have an air tight seal in order to collect the CO2 gas that is released in each environment.  The corks cool off slower than the beaker.  It is important that when finished to carefully pull the corks off of the beakers before the beakers cool too much or you will likely break the beakers.
 
Equipment TitleUse SHIFT+ENTER to open the menu (new window).
  
QuantityUse SHIFT+ENTER to open the menu (new window).
  
laptop computer - TracerDAQ software
1
USB 8 input thermo probe assembly
1
hot plate single burner
1
beaker 1000 mL tall glass
2
beaker 1000 mL short glass
2
bench clamp
1
bench rod L-shaped large
1
rod clamp
2
clamp 3-fingered
2
graduated cylinder 250 mL plastic
2
danger sign
2
cork assembly with attached thermo probe and gas collecting hose
2
water - from the tap
1
soda water - carbonated
1
ice
1
blocking plate
2
dye - red
1
beaker 250 mL glass
1
paper towel
1
rubber sheet - to invert graduated cylinders
1