How would your answers change in Example 14-3 if you had a 50–50 mixture of hydrazine and helium? If you increase d_p by a factor of 5?

Example 14-3

There is a 100 micron carbon dust particle in air at 1 atm. Calculate K_S and the time for the particle to burn completely (d_p = 0). The average value of the diffusivity near the burning particle is 10^–4 m²/s and the density of the carbon particle is 2.26 × 10⁶ g/m³.