Making Liquid Nitrogen From Scratch!
Interactive Video
•
Science, Physics, Chemistry
•
10th Grade - University
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of the atmosphere is made up of nitrogen?
21%
50%
92%
78%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of using a cryo cooler in the experiment?
To filter the air
To cool the air to cryogenic temperatures
To compress the air
To heat the air
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What property of liquid oxygen allows it to be attracted to magnets?
It is non-magnetic
It is diamagnetic
It is ferromagnetic
It is paramagnetic
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the key component used to isolate pure nitrogen from the air?
A helium cylinder
A nitrogen membrane
A carbon filter
A water vapor remover
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What purity level of nitrogen was achieved in the experiment?
95%
100%
98%
99.7%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was one of the challenges faced in liquefying nitrogen?
Too high nitrogen flow rate
Insufficient helium
Excessive cooling
Too low pressure
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the final successful method used to liquefy nitrogen?
Using a smaller flask with a tight seal
Increasing the nitrogen flow rate
Decreasing the helium pressure
Using a larger flask
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