Precisely `1 mol` of helium and `1 mol` of neon are placed in a container. Indicate the correct statements about the system.

Options

A. Molecules of the two gases strike the wall of the container with same frequency.
B. Molecules of helium strike the wall more frequently.
C. Molecules of helium have greater average molecular speed.
D. Helium exerts larger pressure.

Explanation

To analyze the system of 1 mole of helium and 1 mole of neon in a container, we can follow these steps:

### Step 1: Identify the Molecular Weights
- **Helium (He)** has a molecular weight of approximately 4 g/mol.
- **Neon (Ne)** has a molecular weight of approximately 20 g/mol.

### Step 2: Compare Molecular Speeds
- The average molecular speed (\( \mu_{avg} \)) of a gas is inversely proportional to the square root of its molecular weight. This means that lighter gases move faster than heavier gases.
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