Chapter 18, Problem 123CP

(a)

Interpretation Introduction

Interpretation: The mass of lnP(s) produced needs to be determined assuming the 87% efficiency of the reaction.

Concept Introduction: The ideal gas equation is represented as follows;

  $PV=nRT$

Here, P is pressure, V is volume, n is number of moles, R is Universal gas constant and T is temperature.

(b)

Interpretation Introduction

Interpretation: The wavelength of the light needs to be determined, if the electric current is passed through an electronic device in which lnP is pressure and the amount of energy emitted is $2.30\times {10}^{-19}\text{ J}$ .

Concept Introduction: The relation between energy and wavelength is represented as follows:

  $E=\frac{hc}{\lambda }$

Here, h is Planck’s constant, c is speed of light and $\lambda$ is wavelength of light.

(c)

Interpretation Introduction

Interpretation: The type of doping needs to be determined.

Concept Introduction:

In the n-type doping, pentavalent impurity atoms are added to the pure semiconductor. This impurity atom gives extra electrons and known as donor atoms. The free electrons carry charge and n-type semiconductor is formed.

In the p-type doping, trivalent impurity is added to pure semiconductor. The impurity atoms results in the formation of valences or create holes which act as charge carriers. These impurities are known as acceptor atoms.