Kinetic Theory, Van der Waals, & O2 Tank Duration

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Questions and Answers

According to the kinetic theory of matter, what distinguishes gases from solids and liquids at a molecular level?

Gases have stronger intermolecular forces than solids and liquids.
Particles in gases are closely packed together, similar to solids, but with higher kinetic energy.
Gases have a fixed shape and volume, unlike solids and liquids.
Particles in gases are arranged randomly and are very far apart, resulting in low densities and weak attractive forces. (correct)

How does the kinetic theory of gases describe the movement of gas molecules?

Gas molecules only move when the temperature is increased.
Gas molecules are stationary, held in fixed positions by strong attractive forces.
Gas molecules move in a continuous, random motion. (correct)
Gas molecules move in a coordinated manner, maintaining a constant distance from each other.

What role do Van der Waals forces play in the different states of matter according to kinetic theory?

Van der Waals forces are equal in all states of matter, maintaining constant density.
Van der Waals forces are negligible in solids, allowing particles to move freely.
Van der Waals forces are strongest in solids, weaker in liquids, and essentially non-existent in gases. (correct)
Van der Waals forces are strongest in gases, allowing them to expand and fill any volume.

According to the kinetic theory of gases, what is the relationship between the average kinetic energy of gas molecules and absolute temperature?

Average kinetic energy is directly proportional to the absolute temperature. (C) Signup and view all the answers

When should gas cylinders be transported, according to safety guidelines?

Using a hand truck specifically designed for this purpose. (B) Signup and view all the answers

Why is it important to locate gas cylinders in areas where they will not be knocked over or damaged?

To prevent potential leaks, damage, or accidents from falling objects. (A) Signup and view all the answers

What is the significance of the 'Safety Tank Factor' when determining when to change an oxygen tank?

It is a pressure threshold (500 psi) below which the tank should be changed to ensure patient safety. (A) Signup and view all the answers

When calculating the duration of flow for an O2 tank, what factors must be considered?

The current tank pressure, tank factor, and flow rate. (A) Signup and view all the answers

Why is it important to secure gas cylinders properly when in storage or use?

To prevent accidental falls, leaks, or damage to the cylinder and surrounding area. (A) Signup and view all the answers

In the context of gas cylinder safety, what does 'REPORT any leaks or damage to your supervisor immediately' imply?

Any leak or damage, no matter how small, should be reported to ensure safety and prevent potential hazards. (B) Signup and view all the answers

How does the volume of gas itself compare with the total volume in which the gas is contained, according to the kinetic theory?

The volume of gas is negligible compared to the total volume of the container. (D) Signup and view all the answers

What is the formula to determine the Duration of flow when the tank is getting ready to change?

Duration of flow = [(Current Tank Pressure – Safety Tank Factor) x Tank Factor] / Flow (C) Signup and view all the answers

What condition should cylinders be stored in?

Cylinders should be stored in a cool, well ventilated, fire-resistant area (D) Signup and view all the answers

When should you close values and secure cylinder caps?

Values and cylinder caps should be secured when not in use (B) Signup and view all the answers

When should a tank's safety be visually inspected?

Tanks must be inspected regularly (E) Signup and view all the answers

What are the tank factors for the following tank sizes: E, G, H?

E = 0.28, G = 2.41, H = 3.14 (B) Signup and view all the answers

Under the kinetic theory of matter, what properties are characteristic of the solid state?

Particles are closely packed with strong attractive forces, giving a fixed shape and volume. (A) Signup and view all the answers

According to basic principles of kinetic theory, what event transfers energy from molecule to molecule?

Collisions (B) Signup and view all the answers

What is the formula to determine the duration of flow until an O2 tank is empty?

Duration of flow = (Current Tank Pressure x Tank Factor) / Flow (B) Signup and view all the answers

How does the arrangement of particles differentiate a liquid from a solid, according to the kinetic theory?

Particles in liquids are arranged randomly and are slightly further apart than in solids, allowing them to move freely within a fixed volume. (C) Signup and view all the answers

Flashcards

Molecular Motion

Molecules are in constant motion, contributing to the kinetic energy within a substance.

Van der Waals Forces

Weak intermolecular forces that exist between molecules; strongest in solids and essentially non-existent in gases.

Solid State

Particles are closely packed, held by strong forces, giving a fixed shape and volume; explains their high density.

Liquid State

Particles are randomly arranged, slightly further apart than solids, allowing them to move freely within a fixed volume but not a fixed shape.