Math Problem Statement

Determine the average speed (unit m/s) of N2 at 445K. Please enter a number with one decimal.

Solution

To determine the average speed (v\overline{v}) of nitrogen gas (N2N_2) at a given temperature, we can use the following formula derived from the kinetic theory of gases:

v=8RTπM\overline{v} = \sqrt{\frac{8RT}{\pi M}}

Where:

  • RR is the universal gas constant (8.3148.314 J/mol·K),
  • TT is the temperature in Kelvin (445445 K),
  • MM is the molar mass of N2N_2 (which is 28.02g/mol=0.02802kg/mol28.02 \, \text{g/mol} = 0.02802 \, \text{kg/mol}).

Let's calculate:

v=8×8.314×445π×0.02802\overline{v} = \sqrt{\frac{8 \times 8.314 \times 445}{\pi \times 0.02802}}

Now, I'll compute the value.The average speed of N2N_2 molecules at 445 K is approximately 579.9579.9 m/s.

Would you like more details or have any questions about the calculation?

Here are 5 related questions you might find interesting:

  1. How does the average speed of N2N_2 change if the temperature increases to 500 K?
  2. What would be the average speed of oxygen gas (O2O_2) at 445 K?
  3. How does the molar mass of a gas affect its average speed at a given temperature?
  4. What is the root mean square speed of N2N_2 at 445 K?
  5. How would you determine the average kinetic energy of an N2N_2 molecule at 445 K?

Tip: Remember that lighter gas molecules move faster at the same temperature compared to heavier ones.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Kinetic Theory of Gases
Thermodynamics

Formulas

Average speed formula: v̅ = √(8RT / πM)

Theorems

Kinetic Molecular Theory

Suitable Grade Level

Grades 11-12