Calculate the root-mean-square velocity for a hydrogen molecule at -15.0 °C. The universal gas constant, R=8.314 J/mol. K.

56.5 m/s

Explanation:

Step 1: Convert the temperature to Kelvin

We will use the following expression.

K = °C + 273.15

K = -15.0°C + 273.15 = 258.2 K

Step 2: Calculate the root-mean-square velocity

The root-mean-square velocity is the square root of the average square velocity. We can calculate it using the following expression.

where,

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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