Chemistry

Question Analysis
This question tests the student's understanding of how gases can be liquefified under high pressure.

Key Concept Explanation
Gases can be converted into liquids by increasing the pressure, which reduces the distance between particles and strengthens interparticle forces.

Step-by-step Solution
1. Identify the state of in a fire extinguisher under high pressure.
2. Recall that high pressure can cause a gas to liquefy.
3. Therefore, the

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