Gases Are Sold in Large Cylinders for Laboratory Use

question 102

Multiple Choice

Gases are sold in large cylinders for laboratory use. What pressure is exerted by 2.500 kg of oxygen gas (O₂) stored at 22°C in a 40.0-L cylinder? (R = 0.08206 L • atm/K • mol)

• A) 3.55 atm
• B) 1.51 ×10³ atm
• C) 47.3 atm
• D) 7.56 × 10⁴ atm
• E) 10.2 atm

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Definitions:

Ratchet

A mechanical device consisting of a wheel or bar with teeth, allowing movement in one direction while preventing movement in the opposite direction, or colloquially, a situation or process that is perceived to be deteriorating or declining.

Forceps

A handheld, hinged instrument used in surgical procedures for grasping, holding firmly, or extracting something within the body.

Clamping

The process of holding or securing objects tightly together using a device to prevent movement or separation.

Grasping

The action of seizing or holding firmly, often used to describe the development of motor skills in infants or for understanding concepts.