Nine (9) questions here and I see no effort on your part. Apparently you can type but you don't want to think. You may be desperate but I'm not stupid. The idea here is to HELP you. It is NOT to do ALL of your work. You show me some work and I'll help. Info is
- Pressure is approximately 0.02 atm.( what does this mean?
- Temperature in winter is 133 K
- Temperature in summer is 294 K
For question 1 use (P1/T1) = (P2/T2)
P1 = 50 atm in the winter (so T1 = 133 from the problem.
T2 = summer T = 294
(50/133) = (P2/294) and solve for P2.
P2 is 110.5 atm so the answer is c.
Note: The answer in the problem isn't QUITE right for there are four significant figures in the answer and you're only allowed 3 so the answer SHOULD HAVE BEEN shown as 110 atm
Good luck on the others. Show me some work or tell me why you're stuck and I'll help further.
Please help I am desperate!!
INSTRUCTIONS:
MOXIE has already passed the preliminary design review and is now scheduled for critical
design review. You are a chemical engineer working for NASA and your job is to monitor and
analyze data from processes and identify ways to optimize performance.
Upon receiving the prototype tank at your facility, you read “rupture pressure of 78 atm” on the tank. Knowing that Mars follows a highly elliptical orbit, and thus temperatures vary significantly as the planet travels around the Sun, you take it upon yourself to validate JFK Tank and Manufacturing Co.’s statement “designed to meet a wide range of requirements...” and review the behaviour of gases.
Mars Information:
- Pressure is approximately 0.02 atm.
- Temperature in winter is 133 K
- Temperature in summer is 294 K
1. If the Moxie's tank has an initial pressure of 50 atm in the winter, what will be the pressure in the summer?
- 5.88 atm
- 22.6 atm
- 110.5 atm
2. Can the tank withstand the change from winter to summer if it has 50 atm of pressure initially?
- Yes
- No
3. Scientists want to store the converted oxygen into tanks on Mars' surface. What would be the maximum temperature the tanks could reach if it was known at 133 K their minimum volume would be 25 L and their maximum volume could not exceed 54 L without rupturing
- 62 K
- 10 K
- 287 K
4. Would this size of tank be able to withstand the summer temperatures on Mars?
- Yes
- No
5. The Moxie will be converting CO2 to O2. It is being constructed and tested on Earth. However, scientists must take into account the lower atmospheric pressure of Mars. If the Moxie can store on 22.5 L of O2 on Earth (1 atm), what would happen to the volume when the tank was placed on the surface of Mars?
- It would crush inwards with a volume of 0.45 L
- It would explode outwards with a volume of 1, 125 L
6. The 1.98-L storage tank has a listed capacity of 215 g of O2. Use the ideal gas law to calculate the pressure of the storage tank at 20 C (the peak daytime temperature on Mars).
- 81.6 atm
- 0.02 atm
- 178 atm
7. Is the O2 tank safe against sudden rupture at capacity?
- Yes, it will be fine.
- Nope, she is going to blow.
8. Currently the rover, Perseverance, is on Mars and collecting data. Recently, it sent data to NASA regarding its hydraulic cylinders that operate the camera. The rigid cylinder has a volume of 0.75 L. On day 1 of landing on the red planet the temperature was 157 K. By day 100, the temperature had increased by 37 K. If the initial pressure in the hydraulic system was 3.5 kPa, what is the pressure on day 100?
- 0.83 kPa
- 2.83 kPa
- 4.32 kPa
9. How might the world be different if all gases behaved ideally?
1 answer
1 answer