Ideal gases A level General

Nature of Gases, Kinetic Molecular Theory and Gas Laws

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Multiple Choice

It is one of the four fundamental state of matter. It is made up of individual atom, elemental molecules, or compound molecules. It has no definite shape and volume.

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

Oxygen can be contained in gas cylinders with huge amount. What property of gas is shown in the statement?

• Infusibility

• Diffussibility

• Compressibility

• Effusibility

Multiple Choice

1. It is the force exerted on a surface by the air above is as gravity pulls it to Earth.

• Gas

• Pressure

• Atmospheric Pressure

• Temperature

Multiple Select

1. Results from the collision of atoms and molecules in air with objects.

• Kinetic Energy

• Volume

• Pressure

• Temperature

Multiple Choice

1. An instrument used to measure atmospheric pressure.

Multiple Choice

1. Standard conditions are defined as a temperature of _________ and a pressure of ________.

• 23K, 1.2atm

• 273K, 1atm

• 237K, 1atm

• 303K, 2atm

Multiple Choice

What indicates the drop of atmospheric pressure of an area?

• Calm weather

• Fair weather

• Windy weather

• Stormy weather

Multiple Choice

Which of the following formula should be used to find the final volume of a gas under Boyle’s Law?

• P₂ = V₁P₁ / V₂

• V₂ = V₁P₂ / P₁

• V₁ = V₂P₂ / P₁

• V₂ = V₁P₁ / P₂

Multiple Choice

Why do we easily get tired in high altitude? What gas law is involved in this situation?

• Charles law. At higher temperature, the volume of gas particles decreases.

• Boyle’s law. higher altitude means higher pressure, thus, no volume.

• Boyle's Law. Higher altitude means lower pressure, thus, gas particles tend to expand and the number of oxygen molecules per breath decreases.

• Both B&C

Multiple Choice

What happens to the volume of a gas if its temperature is increased?

• Decreases

• increases

• no change

• becomes zero

Multiple Choice

Which of the following situation is not an example of Charles’ law?

• A bag of chips deflated when putting it in fridge.

• A dented ping pong ball inflated when putting it in a hot water.

• A flat tire takes up less space than an inflated tire.

• A hot air balloon floating in the sky.

Multiple Select

Which is not related to ideal gas law?

• Velocity

• Volume

• Time

• Temperature

Multiple Choice

In an ideal gas, if the gas constant R=0.082, what is the unit of R?

• L⋅atm/ K⋅mol

• J / K⋅mol

• J/ K

• J/ mol

Multiple Choice

If the temperature is kept constant, how can we increase the pressure of a gas?

• remove molecules of the gas.

• increase the container volume.

• decrease the container volume

• none of them