Which gas behaves most like an ideal gas? (2020)

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Question: Which gas behaves most like an ideal gas? (2020)

Options:

Correct Answer: Helium

Exam Year: 2020

Solution:

Helium behaves most like an ideal gas because it is a monoatomic gas with weak intermolecular forces.

Which gas behaves most like an ideal gas? (2020)

Which gas behaves most like an ideal gas? (2020)

Step 1: Understand what an ideal gas is. An ideal gas is a theoretical gas that perfectly follows the gas laws without any exceptions.
Step 2: Know the characteristics of an ideal gas. Ideal gases have no intermolecular forces and occupy no volume.
Step 3: Identify the types of gases. Gases can be monoatomic (single atom), diatomic (two atoms), or polyatomic (more than two atoms).
Step 4: Recognize that monoatomic gases have fewer intermolecular forces compared to diatomic or polyatomic gases.
Step 5: Consider helium as an example of a monoatomic gas. Helium is made up of single atoms and has very weak intermolecular forces.
Step 6: Conclude that since helium is monoatomic and has weak intermolecular forces, it behaves most like an ideal gas.

No concepts available.