The speeds of 11 molecules are 2.0, 3.0, 4.0, ..., 12 km/s. What are their (a) average speed and (b) rms speed?

Explanation

To solve the problem, we will calculate the average speed and the root mean square (rms) speed of the 11 molecules with speeds ranging from 2.0 km/s to 12.0 km/s.

### Step-by-Step Solution:

**(a) Average Speed:**

1. **Identify the speeds of the molecules:**
The speeds of the molecules are:
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