Question

day 24 name aaron comestrae date 9/30/25 period 3 score ws phase diagram of co2 carbon dioxide phase diagram dependent y = 17 bar independent x=-52°c the engineering toolbox point a 1...describe what will happen if temperature fall to -80°c. liquid co2 will freeze 2...describe what will happen if temperature rises to 80°c. liquid co2 will vaporize/boil 3...describe what will happen if pressure falls to 5 bars. liquid co2 will vaporize/boil 4...describe what will happen if pressure rises to 100 bars. liquid co2 will become compressible 5...describe what will happen it the temperature rises to 0°c, then the pressure rises to 50 bars. liquid co2 boils then condenses back to liquid 6...describe what will happen if the pressure rises to 50 bars, then the pressure rises to 0°c. liquid co2 gets pressurized after its pressurized warmer point b 7...describe what will happen if temperature falls to -80°c. solid co2 gets colder 8...describe what will happen if temperature rises to 80°c. solid co2 melts the liquid vaporized 9...describe what will happen if pressure falls to 5 bars. solid co2 was less pressurized 10...describe what will happen if pressure rises to 100 bars. 11...describe what will happen it the temperature rises to 0°c, then the pressure rises to 50 bar 12...describe what will happen if the pressure rises to 50 bars, then the temperature rises to 0°

Explanation:

Step1: Analyze phase - diagram principles

Phase - diagrams show the phases of a substance (solid, liquid, gas, etc.) as a function of temperature and pressure. For carbon - dioxide, different regions on the phase - diagram represent different phases.

Step2: Answer question 1

At point A, if the temperature falls to - 80°C, we move vertically down on the phase - diagram. Since the liquid region is above the solid region at lower temperatures, the liquid CO₂ will freeze into solid CO₂ (dry - ice).

Step3: Answer question 2

If the temperature rises to 80°C from point A, we move vertically up. As we cross the liquid - gas boundary, the liquid CO₂ will vaporize or boil and turn into gaseous CO₂.

Step4: Answer question 3

If the pressure falls to 5 bars from point A, we move horizontally to the left. Crossing the liquid - gas boundary, the liquid CO₂ will vaporize or boil.

Step5: Answer question 4

If the pressure rises to 100 bars from point A, we move horizontally to the right. Entering the compressible liquid region, the liquid CO₂ will become a compressible liquid.

Step6: Answer question 5

If the temperature first rises to 0°C (vertical move up), the liquid CO₂ may boil. Then, when the pressure rises to 50 bars (horizontal move right), the gaseous CO₂ will condense back into a liquid.

Step7: Answer question 7

At point B (in the solid region), if the temperature falls to - 80°C, the solid CO₂ just gets colder as we are still in the solid phase region.

Step8: Answer question 8

If the temperature rises to 80°C from point B, we first cross the solid - liquid boundary (solid CO₂ melts into liquid CO₂) and then cross the liquid - gas boundary (liquid CO₂ vaporizes into gaseous CO₂).

Step9: Answer question 9

If the pressure falls to 5 bars from point B, we move horizontally to the left. The solid CO₂ experiences a decrease in pressure while remaining in the solid phase (at least initially depending on the exact path).

Step10: Answer question 10

If the pressure rises to 100 bars from point B, we move horizontally to the right. Depending on the temperature, we may move into the liquid or compressible - liquid region, but starting from solid, the solid CO₂ will be under higher pressure and may transform into a liquid or a more highly - compressed solid state.

Answer:

1. Liquid CO₂ will freeze into solid CO₂.
2. Liquid CO₂ will vaporize/boil into gaseous CO₂.
3. Liquid CO₂ will vaporize/boil into gaseous CO₂.
4. Liquid CO₂ will become a compressible liquid.
5. Liquid CO₂ boils first and then condenses back to liquid.
6. Solid CO₂ gets colder.
7. Solid CO₂ melts into liquid CO₂ and then the liquid vaporizes into gaseous CO₂.
8. Solid CO₂ experiences a decrease in pressure.
9. Solid CO₂ will be under higher pressure and may transform into a liquid or a more highly - compressed solid state.