In Problem 1.3, assume that the particle is made of a sparingly volatile substance, such as naphthaline. As a result of volatility, the partial pressure of the species of which the particle is made...

In Problem 1.3, assume that the particle is made of a sparingly volatile substance, such as naphthaline. As a result of volatility, the partial pressure of the species of which the particle is made (which is the transferred species here) remains constant at the s surface. Write the species conservation equation and boundary conditions for the transferred species.